sign in sign up
<<
Home , 10 Persei, 30 Persei, 49 Persei, 55 Persei, ALGOL, California Nebula

of the Month Objects:

Name .A. Decl. Details δ Cepheus . . Variable , period of 5.366 days. Varies from 3.5 to 4.4 The “Garnet star” Long term irregular variable . Varies from magnitude 3.6 to Cepheus . . µ 5.1 over a rough period of 755 days. (May also vary in colour.)

Small Objects:

Name R.A. Decl. Details of 60 magnitude 9.7 and fainter. Total integrated magnitude 7.9 NGC 7510 23hr 11.5m +60° 34’ with a diameter of 4 arc minutes. Bright planetary , 37 arc seconds in size. Magnitude 10.7, with a mag. 11.6 NGC 40! 00hr 13.0m +72° 32’ central star. (110NGC) Open cluster of 40 stars magnitude 11 and fainter. Total magnitude 10 with a diameter NGC 7762 23hr 50m +68° 02’ of 11 arc minutes. Rich open cluster of 80 stars, magnitude 12 and fainter. Magnitude 7.8 with a diameter NGC 6939! 20hr 31.4m +60° 38’ of 8 arc minutes. (110NGC) Look for NGC 6946 in the same field.

Big Scope Objects:

Name R.A. Decl. Details This face-on spiral, near NGC 6939 lies at a distance of 5 Megaparsecs. Measuring NGC 6946! 20hr 34.8m +60° 09’ 11x9.8 arc minutes has an integrated magnitude of 8.9 (110NGC) This faint, featureless reflection nebula measures 18 arc minutes in size and requires NGC 7023 21hr 02m +68° 12’ good dark skies. Only 4° from Polaris, this faint open cluster is one of the oldest known at 5 billion NGC 188 00hr 44m +85° 20’ . A difficult cluster to resolve, most of the 120 stars fall between mag 12 and 18. This measures 70 x 45 arc seconds, with a 12th magnitude star IC 1470 23hr 05m +60° 15’ embedded near the center. NGC 7129! 21hr 42.8m +66° 06’ Faint reflection nebula around sparse cluster. 7 x 7 arc minutes.

Challenge Objects:

Name R.A. Decl. Details This emission nebula covers almost six square degrees of sky. On good dark nights IC 1396 21hr 39m +57° 30’ appears as a brightening in the . Use lowest magnification or finder with a nebula filter. NGC 2276 +85° 52’ A small Sc spiral. Magnitude 12.4, measuring 2.5 x 2 arc minutes. Look for NGC 2300 07hr 11m (ARP 114) (1950) in same field. NGC 2300 +85° 59’ 07hr 16m A small E2 . Mag 12.2, measuring 1.0 x 0.7 arc minutes. (ARP 25) (1950) 2 h Starry Night 50 l a FOV: 36.28 i NGC 7789 t

s

e l

e

C HD003712 Schedar PacMan Nebula Cr8  Cep Caph  Cas Tr37 Elephant Trunk Bubble Nebula The Scorpion (M52) Cr2 NGC 129 NGC457 h Owl Cluster (NGC 457) Owl Cluster 2 Cr1 0 Cr4 Cr462 h HD005394 NGC 225 Cr7 NGC 7160 HD002905 Ruchbah NGC7160 Cr3 CassiopeiaCr10 Cr9 M103

Alderamin NGC 663 NGC 654 NGC654 NGC 6946 St2 NGC 6939  Cep

Segin HD011415

St5 Mel15

Alfirk HD205021 CepheusCr471 NGC 40

Cr463

NGC 771 HD012216

Er Rai

Altais

4h HD192907

8h °

0

6

HD170000 Cat Eye Nebula NGC 6503

HD008890 Cr464 Nodus I HD155763

7 °

0 0 ° 8 6h

Viewing from Prince George, Canada Long: -122° 43' 42" Lat: 53° 55' 09" Cl Chart centre (J2000): RA: 22h 18.778m Dec: 74° 9.367' 2010/10/31 9:24:03 PM (Local) Altitude: 69° 23.478', Azimuth: 353° 8.101' (north) Limiting Magnitude: 7.0 Constellations of the Month Small Scope Objects:

Name R.A. Decl. Details A bright open cluster visible in . 25 stars cover 25 arc minutes of sky for a NGC 7209 22hr 05m +46° 30’ total magnitude of 6.7. Slightly smaller than NGC 7209, NGC 7243 packs 40 stars into 21 arc minutes and NGC 7243 22hr 15m +49° 53’ shines a bit brighter at magnitude 6.4.

Big Scope Objects:

Name R.A. Decl. Details A rich but compact open cluster of 50 faint stars. Only 5 arc minutes in size, magni- NGC 7245 22hr 15m +54° 20’ tude 9.2. Look for cluster King 9, 10 arc minutes NE. An open cluster near NGC 7245, appearing as a miniature in large IC 1442 22hr 17m +54° 03’ scopes. 20 faint stars covering about 5 arc minutes of sky, mag. 9.1. NGC 7296 A loose, faint open cluster, 20 arc minutes in size. 20 stars involved for a total magni- 22hr 28m +52° 17’ (Collinder 452) tude of 9.7. A bright but small , only 6 arc seconds in size. Bluish in colour, easy IC 5217 22hr 24m +50° 58’ to miss at low power. Mag. 12.6. IC 1434 A faint but rich open cluster of 40 stars covering 8 arc minutes of sky. Magnitude 9.0, 22hr 11m +52° 50’ (Collinder 445) look for a string of 20 stars along the north edge. NGC 7223 22hr 10m +41° 00’ An Sc , 2.0 x 1.3 arc minutes in size. Mag 13.5. Brightest in a group of faint including NGC 7263, 7264, 7273, 7274 and 7276. NGC 7265 Group 22hr 22m +36° 14’ Magnitude 13.7, 2.4 x 1.9 arc minutes in size.

Challenge Objects:

Name R.A. Decl. Details Abell 79 A faint planetary nebula that demands an OIII filter. Magnitude 15.0, 59 x 49 arc 22hr 03m +42° 16’ (PK102-2.1) seconds in size. M2-53 Brighter and smaller than Abel 79. Magnitude 14.8, but more compact at 14 arc second 22hr 32m +56° 10’ (PK104-1.1) diameter. Starry Night e 3 3 M h 2 NGC 7380 NGC7380 h 2 FOV: 22.48 l 3 2 tia 2 2 es NGC7160 m el 0 3 h 1 2 NGC 7686  Cep NGC7686

Cr450  And  Cep

 And HD222439  Cep Cr447

Erakis 60° Cr446 Cr439 Elephant Trunk Tr37

Blue Snowball (NGC 7662)

 Lac HD213558

NGC 7243 NGC7243

 And HD217675

h 1 2 Lacerta HD206672 HD212120

2 Cyg HD207330

HD213420 NGC7209 Cr470 Cocoon Nebula

M39 M39

NGC 7082 50° NGC7082 Cr432  Cyg Cr434

NGC6991

NGC 7039 Cr431 NGC 7331 1 Lac Cr425

North America Nebula (NGC 7000) HD197345 HD199081

HD215182 Matar 3 4 0° 0° NGC 7027

Viewing from Prince George, Canada Long: -122° 43' 42" Lat: 53° 55' 09" Chart centre (J2000): RA: 22h 26.351m Dec: 46° 19.142' 2010/10/31 9:38:08 PM (Local) Altitude: 79° 55.584', Azimuth: 225° 46.413' (south west) Limiting Magnitude: 8.1 Constellations of the Month

Small Scope Objects:

Name R.A. Decl. Details The “Demon Star” - an eclipsing . Drops from mag. 2.1 to 3.4 for () 03hr 08m +40° 57’ β hours, every 2.86739 days. M34 02hr A bright, rich open cluster, easily visible in binoculars. 80 stars, mag 7 and fainter, 20 +42° 47’ (NGC 1039) 42.0m arc minutes in size. Integrated magnitude is 5.5. The “Double Cluster” - two naked eye clusters, separated by about 1/2°. Both clusters NGC 869!! and 02hr +57° 08’ contain about 300 stars each, mag. 7 and fainter. Cluster sizes are both 35 arc min- NGC 884! 21.0m utes. NGC 869 is mag 4.4, NGC 884 is mag 4.7. (110NGC) Another bright open cluster, 25 arc minutes in size. 80 stars, mag. 8 and fainter. Easy NGC 1528 04hr 15m +51° 15’ in binoculars, total magnitude of 6.0.

Big Scope Objects:

Name R.A. Decl. Details Located less than 2° away from The Double Cluster, but smaller and fainter. 40 stars, NGC 957 02hr 33m +57° 31’ mag 11 to 15, 10 arc minutes in size. Total magnitude 7.2. Another nice open cluster of 40 stars, mag 11 and fainter. 20 arc minutes in diameter. NGC 1245 03hr 15m +47° 14’ Total magnitude 6.9. 04hr NGC 1491! +51° 19’ A compact but bright emission nebula, 3x3 arc minutes. (110NGC) 03.4m The “Little ” - an 11th magnitude planetary nebula, a smaller ver- M76 01hr +51° 34’ sion of The “Dumbbell Nebula” in . One of the toughest Messier objects (?) (NGC 650/51) 42.4m 140 x 70 arc seconds in size with a mag 16.5 central star. 02hr An E7 elliptical galaxy, 4.5 x 1.3 arc minutes. Magnitude 11.0 with high surface NGC 1023! +39° 04’ 40.4m brightness. (110NGC) “Perseus A” - a 13th mag . Difficult to observe with smaller scopes, 0.7 NGC 1275 03hr 20m +41° 31’ x 0.6 arc minutes in size, 8” scope probably minimum aperature.

Challenge Objects:

Name R.A. Decl. Details The “” - a large, faint emission nebula, 145 x 40 arc minutes in size. NGC 1499 04hr 04m +36° 25’ Best observed from dark skies at very low power (8 to 16X) Somewhat less invisible with an H-beta, OIII or UHC filter. 3 3 hStarry Night h 2h 7 2h 1h 1h 3 30 30m FOV:0m 42.37 m HD011415 Cr20

Mirach (M76) h 3 0 m St2

IC 1805 Perseus Double Cluster (NGC 869) Perseus Double Cluster (NGC 884) NGC869 h Cr32 Cr28 IC 1848 Cr36 Cr29 Cr34 Galaxy, (M33) Triangulum Pinwheel Almach NGC752 NGC 752

h NGC 891 3  Per 0 m NGC1502

° 0 M34 Triangulum 2

NGC 1023 HD020902 Sheratan Mel20 NGC 772

Algol h NGC 1491

NGC 1528 Perseus

NGC 1545

HD017573

Aries  Per HD024760

California Nebula

Capella Almaaz Atik HD024398

3 0 ° m 0 HD032630 1 NGC 1514 HD023302 HD040183 Cr62 , Seven Sisters (M45) HD023850 M45 Cz20

4 h Hassaleh Viewing from Prince George, Canada Long: -122° 43' 42" Lat: 53° 55' 09" Chart centre (J2000): RA: 3h 16.666m Dec: 43° 16.449' 2010/10/31 9:40:05 PM (Local) Altitude: 49° 15.273', Azimuth: 78° 56.679' (east) Limiting Magnitude: 6.7 Constellations of the Month

Small Scope Objects:

Name R.A. Decl. Details One of the closest white dwarf stars to our , at 14.1 light years. Wolf 28 00hr +05° 25’ Magnitude 12.4 with a of 2.98 arc seconds/ in position angle (van Maanen’s star) 49.1m 155.5°. Approx. 7800 miles in diameter with a surface temperature of 6000° K. A close with a separation of 1.5 arc seconds. Magnitudes 4.33 and α Psc 02hr 02m +02° 46’ 5.23 at a distance of 130 light years with an of 720 years. Pale green and blue in colour. An easy, colourful double star, magnitudes 6.6 and 6.2, separated by 23 arc sec- Psc 01hr 14m +07° 35’ ζ onds. Primary star is yellowish, the secondary pale lilac. 140 light years distant. A large face-on Sc spiral galaxy, probably the most difficult of the Messier -ob M74 01hr jects. Magnitude 9.2, covering 10.2 x 9.5 arc minutes giving low surface bright- +15° 47’ (NGC 628) 36.7m ness. Discovered by Pierre Mechain in September 1780, and sighted by Messier one month later.

Big Scope Objects:

Name R.A. Decl. Details A small Sc spiral a few degrees SW of M74. Magnitude 11.9, 3.5 x 2.9 arc minutes in NGC 514 01hr 24m +12° 55’ size. Visible in a 3” scope under good conditions. A reasonably bright face-on Sb spiral, magnitude 10.3. Located about 8° due south NGC 488 01hr 22m +05° 15’ of NGC 514, it measures 5.2 x 4.1 arc minutes. Faint spiral arms, but a very bright nucleus. An irregular galaxy, located within a degree of NGC 488. 3 x 1 arc minutes, magni- NGC 520 01hr 25m +04° 44’ tude 11.2. Unusual mottling and shape is visible in larger scopes. An Sc spiral similar in appearance to NGC 514. 3 x 2 arc minutes, magnitude 11.9. NGC 470 01hr 20m +03° 25’ Look for NGC 474, a 0.4’ 13th mag. in the same field. An Sc spiral located near the western “fish head”. 12th magnitude, 3.5 x 1.4 arc min- NGC 7541 23hr 15m +04° 32’ utes. Visible with a 6 inch at low power under good skies. Look for NGC 7537 in the same low power field.

Challenge Objects:

Name R.A. Decl. Details A group of a dozen or so galaxies, located near M33. Ranging in size from 0.4 x 0.4 NGC 383 Group 01hr 07m +32° 25’ arc minutes to 2.3 x 1.9, with magnitudes ranging from 11.9 to 15.7. Another group if 14 or so galaxies near M33. 4 x 4 arc minutes and smaller, magni- NGC 507 Group 01hr 24m +33° 15’ tudes 13 to 15.2. e 2 l h Starry Night 40 e 0 s 3 FOV: 42.55 t i a l M

e r i NGC752 d Scheat NGC 752 i a NGC 404 Mirach n ° HD003369 20 Sadal Bari

 Tri  And Alpheratz

HD220061 Triangulum , Pinwheel Galaxy (M33)

Rasalmothallah

HD007964 NGC 672 Cr21 Cr21 HD212076

Markab 10°

Homam NGC7772 Hamal

Sheratan Algenib

HD011502 NGC 772 NGC 772

The Phantom (M74)  Psc Pisces HD217891 a Equ tial HD224617 eles  Psc C

NGC 524

NGC 488 HD015318 NGC 676 Uranus Eurydome Carme IC 1613 Aitne Callirrhoe Pasiphae -10°

Viewing from Prince George, Canada Long: -122° 43' 42" Lat: 53° 55' 09" Chart centre (J2000): RA: 0h 23.600m Dec: 14° 26.793' 2010/10/31 9:41:29 PM (Local) Altitude: 48° 7.473', Azimuth: 153° 19.156' (south east) Limiting Magnitude: 6.7