Accurate Distances to Galactic Globular Clusters Through a Combination of Gaia EDR3, HST and Literature Data
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The Messenger
10th anniversary of VLT First Light The Messenger The ground layer seeing on Paranal HAWK-I Science Verification The emission nebula around Antares No. 132 – June 2008 –June 132 No. The Organisation The Perfect Machine Tim de Zeeuw a groundbased spectroscopic comple thousand each semester, 800 of which (ESO Director General) ment to the Hubble Space Telescope. are for Paranal. The User Portal has Italy and Switzerland had joined ESO in about 4 000 registered users and 1981, enabling the construction of the the archive contains 74 TB of data and This issue of the Messenger marks the 3.5m New Technology Telescope with advanced data products. tenth anniversary of first light of the Very pioneering advances in active optics, Large Telescope. It is an excellent occa crucial for the next step: the construction sion to look at the broader implications of the Very Large Telescope, which Winning strategy of the VLT’s success and to consider the received the green light from Council in next steps. 1987 and was built on Cerro Paranal in The VLT opened for business some five the Atacama desert between Antofagasta years after the Keck telescopes, but the and Taltal in Northern Chile. The 8.1m decision to take the time to build a fully Mission Gemini telescopes and the 8.3m Subaru integrated system, consisting of four telescope were constructed on a similar 8.2m telescopes and providing a dozen ESO’s mission is to enable scientific dis time scale, while the Large Binocular Tele foci for a carefully thoughtout comple coveries by constructing and operating scope and the Gran Telescopio Canarias ment of instruments together with four powerful observational facilities that are now starting operations. -
Globular Clusters by Steve Gottlieb
Southern Globulars 6/27/04 9:19 PM Nebula Filters by Andover Ngc 60 Telestar NCG-60 $148 Meade NGC60 For viewing emission and Find, compare and buy 60mm Computer Guided Refractor Telescope $181 planetary nebulae. Telescopes! Simply Fast Telescope! Includes 4 eye Free Shipping. Affiliate. Narrowband and O-III types Savings www.amazon.com pieces - Affiliate www.andcorp.com www.Shopping.com www.walmart.com Observing Down Under: Part I - Globular Clusters by Steve Gottlieb Omega Centauri - HST This is the first part in a series based on my trip to Australia last summer, covering observations of a few southern showpiece objects. The other parts in the series are: Southern Planetaries Southern Galaxies Two Southern Galaxy Groups These observing notes were made in early July while my family was staying at the Magellan Observatory (astronomical farmstead) for eight nights. The observatory is in the southern tablelands of New South Wales between Goulburn and Canberra (roughly 3.5 hrs from Sydney) and is hosted by Zane Hammond and his wife Fiona. Viewing the showpiece southern globulars was high on my observing priorities for Australia. Because the center of the Milky Way wheels overhead from -35° latitude, the globular system is much better placed and several of the best globulars in the sky which are completely inaccessible from the north are well placed. In the August issue of S&T, Les Dalrymple (who I observed with one evening), ranked M13 no better than 8th among the best globulars visible from Australia. I'd still jack up its ranking a couple of notches, but it's just one of the weak runnerups to 47 Tucana and Omega Centauri viewed over 75° up in the sky and behind NGC 6752, 6397 and M22. -