November 2012 November 2012 Vol
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
How to Make $1000 with Your Telescope! – 4 Stargazers' Diary
Fort Worth Astronomical Society (Est. 1949) February 2010 : Astronomical League Member Club Calendar – 2 Opportunities & The Sky this Month – 3 How to Make $1000 with your Telescope! – 4 Astronaut Sally Ride to speak at UTA – 4 Aurgia the Charioteer – 5 Stargazers’ Diary – 6 Bode’s Galaxy by Steve Tuttle 1 February 2010 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 1 2 3 4 5 6 Algol at Minima Last Qtr Moon Æ 5:48 am 11:07 pm Top ten binocular deep-sky objects for February: M35, M41, M46, M47, M50, M93, NGC 2244, NGC 2264, NGC 2301, NGC 2360 Top ten deep-sky objects for February: M35, M41, M46, M47, M50, M93, NGC 2261, NGC 2362, NGC 2392, NGC 2403 7 8 9 10 11 12 13 Algol at Minima Morning sports a Moon at Apogee New Moon Æ super thin crescent (252,612 miles) 8:51 am 7:56 pm Moon 8:00 pm 3RF Star Party Make use of the New Moon Weekend for . better viewing at the Dark Sky Site See Notes Below New Moon New Moon Weekend Weekend 14 15 16 17 18 19 20 Presidents Day 3RF Star Party Valentine’s Day FWAS Traveler’s Guide Meeting to the Planets UTA’s Maverick Clyde Tombaugh Ranger 8 returns Normal Room premiers on Speakers Series discovered Pluto photographs and NatGeo 7pm Sally Ride “Fat Tuesday” Ash Wednesday 80 years ago. impacts Moon. 21 22 23 24 25 26 27 Algol at Minima First Qtr Moon Moon at Perigee Å (222,345 miles) 6:42 pm 12:52 am 4 pm {Low in the NW) Algol at Minima Æ 9:43 pm Challenge binary star for month: 15 Lyncis (Lynx) Challenge deep-sky object for month: IC 443 (Gemini) Notable carbon star for month: BL Orionis (Orion) 28 Notes: Full Moon Look for a very thin waning crescent moon perched just above and slightly right of tiny Mercury on the morning of 10:38 pm Feb. -
Binocular Universe: Aurigan Treasures
Binocular Universe: Aurigan Treasures February 2012 Phil Harrington ead outside this evening and take a look high overhead. If you live in midnorthern latitudes, you will find a lone beacon cresting near the zenith as Hthe sky darkens. That's Capella, the Alpha (α) star of the constellation Auriga the Charioteer. Tracing back to ancient Rome, the name Capella translates as "She-Goat," a reference to the position it holds in the picture of the Charioteer. He is often portrayed as holding a goat and two kids in his arms. Above: Winter star map from Star Watch by Phil Harrington. Finder chart for this month's Binocular Universe, adapted from TUBA, www.philharrington.net/tuba.htm Today, we know that Capella is actually a binary star system lying some 42 light years away. Each of Capella's suns is classified as a type-G yellow star, like our Sun. That means that all three have roughly the same surface temperature, although our yellow dwarf Sun is only about one-tenth as large as either of the Capella giants. There is little hope of spotting the two Capella component stars through even the largest telescopes, since they are only separated by about 60 million miles, less than the distance from the Sun to Venus. The Charioteer’s pentagonal body highlights a wonderful area of the winter sky to scan with binoculars. There, you will find three of the season’s brightest open star clusters as well as an array of lesser known targets. M38, one of Auriga's three Messier open clusters, is centrally positioned within Auriga’s pentagonal body. -
Astronomy Magazine 2020 Index
Astronomy Magazine 2020 Index SUBJECT A AAVSO (American Association of Variable Star Observers), Spectroscopic Database (AVSpec), 2:15 Abell 21 (Medusa Nebula), 2:56, 59 Abell 85 (galaxy), 4:11 Abell 2384 (galaxy cluster), 9:12 Abell 3574 (galaxy cluster), 6:73 active galactic nuclei (AGNs). See black holes Aerojet Rocketdyne, 9:7 airglow, 6:73 al-Amal spaceprobe, 11:9 Aldebaran (Alpha Tauri) (star), binocular observation of, 1:62 Alnasl (Gamma Sagittarii) (optical double star), 8:68 Alpha Canum Venaticorum (Cor Caroli) (star), 4:66 Alpha Centauri A (star), 7:34–35 Alpha Centauri B (star), 7:34–35 Alpha Centauri (star system), 7:34 Alpha Orionis. See Betelgeuse (Alpha Orionis) Alpha Scorpii (Antares) (star), 7:68, 10:11 Alpha Tauri (Aldebaran) (star), binocular observation of, 1:62 amateur astronomy AAVSO Spectroscopic Database (AVSpec), 2:15 beginner’s guides, 3:66, 12:58 brown dwarfs discovered by citizen scientists, 12:13 discovery and observation of exoplanets, 6:54–57 mindful observation, 11:14 Planetary Society awards, 5:13 satellite tracking, 2:62 women in astronomy clubs, 8:66, 9:64 Amateur Telescope Makers of Boston (ATMoB), 8:66 American Association of Variable Star Observers (AAVSO), Spectroscopic Database (AVSpec), 2:15 Andromeda Galaxy (M31) binocular observations of, 12:60 consumption of dwarf galaxies, 2:11 images of, 3:72, 6:31 satellite galaxies, 11:62 Antares (Alpha Scorpii) (star), 7:68, 10:11 Antennae galaxies (NGC 4038 and NGC 4039), 3:28 Apollo missions commemorative postage stamps, 11:54–55 extravehicular activity -
Observing List
day month year Epoch 2000 local clock time: 2.00 Observing List for 17 11 2019 RA DEC alt az Constellation object mag A mag B Separation description hr min deg min 58 286 Andromeda Gamma Andromedae (*266) 2.3 5.5 9.8 yellow & blue green double star 2 3.9 42 19 40 283 Andromeda Pi Andromedae 4.4 8.6 35.9 bright white & faint blue 0 36.9 33 43 48 295 Andromeda STF 79 (Struve) 6 7 7.8 bluish pair 1 0.1 44 42 59 279 Andromeda 59 Andromedae 6.5 7 16.6 neat pair, both greenish blue 2 10.9 39 2 32 301 Andromeda NGC 7662 (The Blue Snowball) planetary nebula, fairly bright & slightly elongated 23 25.9 42 32.1 44 292 Andromeda M31 (Andromeda Galaxy) large sprial arm galaxy like the Milky Way 0 42.7 41 16 44 291 Andromeda M32 satellite galaxy of Andromeda Galaxy 0 42.7 40 52 44 293 Andromeda M110 (NGC205) satellite galaxy of Andromeda Galaxy 0 40.4 41 41 56 279 Andromeda NGC752 large open cluster of 60 stars 1 57.8 37 41 62 285 Andromeda NGC891 edge on galaxy, needle-like in appearance 2 22.6 42 21 30 300 Andromeda NGC7640 elongated galaxy with mottled halo 23 22.1 40 51 35 308 Andromeda NGC7686 open cluster of 20 stars 23 30.2 49 8 47 258 Aries 1 Arietis 6.2 7.2 2.8 fine yellow & pale blue pair 1 50.1 22 17 57 250 Aries 30 Arietis 6.6 7.4 38.6 pleasing yellow pair 2 37 24 39 59 253 Aries 33 Arietis 5.5 8.4 28.6 yellowish-white & blue pair 2 40.7 27 4 59 239 Aries 48, Epsilon Arietis 5.2 5.5 1.5 white pair, splittable @ 150x 2 59.2 21 20 46 254 Aries 5, Gamma Arietis (*262) 4.8 4.8 7.8 nice bluish-white pair 1 53.5 19 18 49 258 Aries 9, Lambda Arietis -
March 2005 Crossword Them to Us for Processing
San Diego Astronomy Association Celebrating Over 40 Years of Astronomical Outreach Office (619) 645-8940 April 2005 Observatory (619) 766-9118 http://www.sdaa.org Messier Marathon A Non-Profit Educational Association By Ed Rumsey P.O. Box 23215, San Diego, CA 92193-3215 The club’s Messier Marathon was held the evening of March 12/13 at TDS. Both SDAA Business Meeting of the public pads were filled to capacity early making for tremendous interaction Next meeting will be held at: with fellow astronomers. A seasonal marine layer ensured a reduced San Diego SKF Condition Monitoring light dome for the coming evening. Friday night had been a bit dewy but clear 5271 Viewridge Court through out the evening and we were hopeful for at least the same. Some even San Diego, CA 92123 had visions of a repeat of last year with its warm dry clear skies. While observing April 12th at 7:30pm all 110 objects was unlikely, ambitions were high. With the setting of the sun, a warm afternoon breeze subsided and planets popped Next Program Meeting first into view upon a cloudless sky. Mercury at 15° above the horizon made a April 20th 7:00 pm wonderful crescent while Saturn displayed magnificent ring structure with a hint of Mission Trails Regional Park banding. A 65-hour old moon wetted the astronomers’ appetites with splendid views Visitor and Interpretive Center of the terminator and lunar structure. A hint of the evening’s moisture was visible to 1 Father Junipero Serra Trail the west in the valley below. -
Publications John B. Rice
Publications John B Rice Rice JB Systems for Determining Radial velocities with an All Reection Stellar Sp ectrograph MA Thesis University of Toronto Crampton D Herd JF Hub e DB and Rice JB A Comparative Study of Systems of Lines for Radial Velocity Determinations with Dierent Sp ectrographs IAU Symp osium Number Rice JB An ObliqueRotator Mo del for the Magnetic and Sp ectrum Variable HD PhD Thesis University of Western Ontario Burke EW Rice JB and Wehlau WH The Period of the Light Variation of HD PASP Rice JB An Oblique Rotator Mo del for the Magnetic and Sp ectrum Variable HD Astron omy and Astrophysics Rice JB and Gaizauskas V The Oscillatory Velocity Field Observed in a Unip olar Sunsp ot Re gion Solar Physics Rice JB A Radial Velocity Study of the Ap star HD PASP Rice JB A Line identication List for the Ap star HD PASP Rice JB The HydrogenLineStrength Variation in the Ap Star HD J Roy Astron So c Can Rice JB The Short Period Radial Velocity Variability of the Si Star CG and HD A A Rice JB Wehlau WH Khokhlova V and Piskunov NE Distribution of Iron and Chromium over the Surface of Epsilon U Ma Pro ceedings of the rd Liege International Astrophysical Sym p osium Rice JB LINPOS An Interactive Program for Stellar Line Position Measurement P Dominion Astrophysical Observatory Vol XVI 1 Cowley C and Rice JB HR Returning to Rare Earth Maximum Phase Nature Rice JB and Wehlau WH Absorption Line Symmetries for Two Hg Mn Stars A A Khokhlova V Piskunov NE Rice JB and Wehlau WH Mapping of Iron and Chromium -
57-1 Rev0 Winter 2020
THE VALLEY CONTENTS ___________________ SKYWATCHER Articles Ptesident’s Corner 1 The Official Publication of the Chagrin Land Acquisition Project 10 Valley Astronomical Society Measuring Satellite Magnitudes Est. 1963 For a Good Cause 11 CVAS Messier Marathon 2020 12 President’s Corner “When Worlds Collide”, a Friends, Book Review by Gus Saikaly 16 What Does It Feel Like to be Thank you for the opportunity Traveling at Supersonic Speeds? 18 to help steer the CVAS forward. As I consider some ___________________ goals for the future, I remain ever mindful of the original Regular Features goals of our organization, Observer’s Log 2 which are to increase the Notes & News 15 astronomical knowledge and Constellation Quiz 21 technique of our members, Deep Thoughts on Engineering and Physics 25 for public service in our community, promotion of public education in astronomy, the continuation of useful research, and the preservation of unpolluted ____________________ skies for future use of both the astronomer and the general public. CVAS Officers Joe Masar President The goals I would like to focus on are observing and Marty Mullet Vice President/Park membership. Liason Steve Fishman Treasurer Russ Swaney Secretary I would like to organize more observing events, Gus Saikaly Director of including events that will engage the public. I am Observations Sam Bennici Observatory hopeful that these events will also help increase our Director membership. Examples of these events include Dan Rothstein Historian planning for our upcoming Messier Marathon and our Chris Powell Editor monthly open to the public observation nights at ______________________ Nassau Station, as well as other public events. -
The COLOUR of CREATION Observing and Astrophotography Targets “At a Glance” Guide
The COLOUR of CREATION observing and astrophotography targets “at a glance” guide. (Naked eye, binoculars, small and “monster” scopes) Dear fellow amateur astronomer. Please note - this is a work in progress – compiled from several sources - and undoubtedly WILL contain inaccuracies. It would therefor be HIGHLY appreciated if readers would be so kind as to forward ANY corrections and/ or additions (as the document is still obviously incomplete) to: [email protected]. The document will be updated/ revised/ expanded* on a regular basis, replacing the existing document on the ASSA Pretoria website, as well as on the website: coloursofcreation.co.za . This is by no means intended to be a complete nor an exhaustive listing, but rather an “at a glance guide” (2nd column), that will hopefully assist in choosing or eliminating certain objects in a specific constellation for further research, to determine suitability for observation or astrophotography. There is NO copy right - download at will. Warm regards. JohanM. *Edition 1: June 2016 (“Pre-Karoo Star Party version”). “To me, one of the wonders and lures of astronomy is observing a galaxy… realizing you are detecting ancient photons, emitted by billions of stars, reduced to a magnitude below naked eye detection…lying at a distance beyond comprehension...” ASSA 100. (Auke Slotegraaf). Messier objects. Apparent size: degrees, arc minutes, arc seconds. Interesting info. AKA’s. Emphasis, correction. Coordinates, location. Stars, star groups, etc. Variable stars. Double stars. (Only a small number included. “Colourful Ds. descriptions” taken from the book by Sissy Haas). Carbon star. C Asterisma. (Including many “Streicher” objects, taken from Asterism. -
March 2021 BRAS Newsletter
A From NASA website, Perseverance Rover Landing On Mars, February 18, 2021 (see more on Page 10) Monthly Meeting March 8th at 7:00 PM, via Jitsi (Monthly meetings are on 2nd Mondays at Highland Road Park Observatory, temporarily during quarantine at meet.jit.si/BRASMeet). PRESENTATION: by Steven M. Tilley, on “Using Find_Orb for Orbit determination Checking, Recovery, Finding a Risk Corridor, and Identifications” What's In This Issue? President’s Message Member Meeting Minutes Business Meeting Minutes Outreach Report Asteroid and Comet News Light Pollution Committee Report Globe at Night Announcing - SubReddit and Discord Messages from the HRPO REMOTE DISCUSSION Nano Days Observing Notes: Auriga - The Charioteer Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society BRAS YouTube Channel Baton Rouge Astronomical Society Newsletter, Night Visions Page 2 of 22 March 2021 President’s Message Welcome to March. February flew by so fast it pretty much took my breath away—or was that the cold. Hopefully, everybody has thawed out by now and, maybe, just maybe, that which is in control of the weather will cut us some slack and give us some nice, cloudless and moonless nights without the sub-zero temps so we can go out an enjoy some winter sky viewing or imaging without risking our toes before the dreaded return of daylight saving time—which, unfortunately, is in March. Even though the month went by pretty quickly, we did manage to get in our Winter members observing night on the 7th of February. Our apologies for the conflicting nights listed in the last newsletter, this was mainly due to our trying to outsmart the weather and making changes to the date at the last minute and accidentally running the minutes from the December meeting instead of those for the January meeting. -
Dave Mitsky's Monthly Celestial Calendar
Dave Mitsky’s Monthly Celestial Calendar January 2010 ( between 4:00 and 6:00 hours of right ascension ) One hundred and five binary and multiple stars for January: Omega Aurigae, 5 Aurigae, Struve 644, 14 Aurigae, Struve 698, Struve 718, 26 Aurigae, Struve 764, Struve 796, Struve 811, Theta Aurigae (Auriga); Struve 485, 1 Camelopardalis, Struve 587, Beta Camelopardalis, 11 & 12 Camelopardalis, Struve 638, Struve 677, 29 Camelopardalis, Struve 780 (Camelopardalis); h3628, Struve 560, Struve 570, Struve 571, Struve 576, 55 Eridani, Struve 596, Struve 631, Struve 636, 66 Eridani, Struve 649 (Eridanus); Kappa Leporis, South 473, South 476, h3750, h3752, h3759, Beta Leporis, Alpha Leporis, h3780, Lallande 1, h3788, Gamma Leporis (Lepus); Struve 627, Struve 630, Struve 652, Phi Orionis, Otto Struve 517, Beta Orionis (Rigel), Struve 664, Tau Orionis, Burnham 189, h697, Struve 701, Eta Orionis, h2268, 31 Orionis, 33 Orionis, Delta Orionis (Mintaka), Struve 734, Struve 747, Lambda Orionis, Theta-1 Orionis (the Trapezium), Theta-2 Orionis, Iota Orionis, Struve 750, Struve 754, Sigma Orionis, Zeta Orionis (Alnitak), Struve 790, 52 Orionis, Struve 816, 59 Orionis, 60 Orionis (Orion); Struve 476, Espin 878, Struve 521, Struve 533, 56 Persei, Struve 552, 57 Persei (Perseus); Struve 479, Otto Struve 70, Struve 495, Otto Struve 72, Struve 510, 47 Tauri, Struve 517, Struve 523, Phi Tauri, Burnham 87, Xi Tauri, 62 Tauri, Kappa & 67 Tauri, Struve 548, Otto Struve 84, Struve 562, 88 Tauri, Struve 572, Tau Tauri, Struve 598, Struve 623, Struve 645, Struve -
Human Vision and Dark Adaptation
AN ABSTRACT OF THE THESIS OF Carsten Christof Grellmann for the degree of Honors Baccalaureate of Science in Mechanical Engineering presented on May 22, 2009. Title: Light Pollution and the Limiting Visual Magnitude in Corvallis, Oregon. Abstract approved: Richard Peterson This study sought to ascertain the degree to which the night sky of Corvallis is affected by light pollution by determining the limiting visual magnitude. Defined as the brightness of the dimmest star that can be seen with the averted naked eye, the limiting visual magnitude establishes a quantitative standard by which to judge the quality of the night sky. Using the star count method and predetermined star fields prescribed by the International Meteor Organization, observations were conducted at Kings Boulevard and Van Buren Street, the Valley Library Quad, and Riverfront Park from the months of November to April. For the purposes of comparison, observations were also conducted at Adair County Park, downtown Portland, and Warm Springs in Central Oregon. This study concluded that the skies of Corvallis are moderately affected by light pollution, with limiting magnitudes between +5.85 and +6.27 with an uncertainty of ±0.12 for the three Corvallis sites, as compared to +7.16 at Warm Springs and +5.04 in downtown Portland. Furthermore, examples of light pollution and its effect on the night sky were photographically documented at each site with a Canon Digital Rebel XT camera and an 8-inch Schmidt-Cassegrain telescope. Key Words: Light Pollution, Limiting Visual Magnitude, -
Users Guide, Sky Maps
All-Sky Map for January and February January 10 p.m. February 8 p.m. See Map Detail Navigating the Night Sky Learn the sky by first finding those stars or constellations that you already know, such as the Big Dipper or Orion. This time of year, the Big Dipper lies low in the northeast and Orion is high in the southeast. Judge the relative positions of new stars from the ones you know. Use the Big Dipper as a guide to find: Use Orion as a guide to find: The North Star Sirius, the brightest star in the night sky, Capella The Winter Triangle, Castor Aldebaran and the Hyades To use this map: Face south and hold the map above your head. The stars on the map should match those in the sky. Selected Deep Sky Objects in the January through April early evening sky To find star clusters M36, M37, and M38: 1. Locate the bright star Capella. It is nearly directly overhead. Locate reddish Aldebaran. 2. Locate the other four major stars of the pentagon of Auriga. The bottom one is really Beta Tauri. 3. Find Iota. It is 40% of the distance between Capella and Aldebaran. 4. M38 is half way along the line from Iota to Theta. Capella Distance: 4200 light-years. 5. M36 lies just north of the half way point between Theta Aurigae and Beta Tauri. Distance: 4000 light-years. 6. M37 lies just south of the half way point between 40% Theta Aurigae and Beta Tauri. Distance: 4500 Auriga light-years. Theta M38 Aurigae Iota Castor Aurigae M36 M37 Pollux 50% Beta 60% M35 Gemini Tauri Hyades 50% Taurus Zeta Gamma Tauri Geminorum Aldebaran To find star cluster M35: 1.