M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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... Non-Existent Non-Existent Open Cl 8.0 cluster? ... Glxy SA(s)c: Non-Existent Non-Existent Non-Existent Glxy (R')SB(rs)0/a 13.5 UGC A132 IRAS 7225-933 PGC 20948 Tripple Star Tripple Star NGC 2494 UGC 4141 MCG 0-21-1 CGCG 3-2 IRAS 7565-30 PGC 22377 14.1 IC 487 PGC 22377 UGC 4141 MCG 0-21-1 CGCG 3-2 IRAS 7565-30 Sub Total: Observed: Yes Object IC IC NGC NGC NGC NGC NGC NGC 446 2172 2170 2182 2183 2185 2215 2232 H19-4 H38-4 H20-4 H20-7 H25-8 Her Type ...

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• http://www.wro.org/scodova/RNGC_Objects_by_Constellation-Mon.pdf
• http://www.wro.org/neumann/RNGC_Objects_by_Constellation-Cep.pdf
• http://www.wro.org/scodova/RNGC_Objects_by_Constellation-Cep.pdf

ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

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• Deep Space Objects
• Next VLT Instrument Ready for the Astronomers (PR Photos 05a-c/00)
• mod_mem_cache - Apache HTTP Server

... The algorithm has been successfully applied to both real and simulated astronomical data (Jefferies , 1993; Jefferies 1993) and its ability to accurately preserve photometry in the observed image has been demonstrated. ... In order to investigate the algorithm's performance without the influence of detector and photon noise we took the ``truth'' data set and convolved it with the given PSF to generate a noiseless image. ... The restored object and the two restored PSF's are shown in Fig. ...

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• Observing Faint Targets Near Bright Objects
• Stellar Photometry
• Phase I Target Naming Conventions

IFP gallery SCORPIO (since 2000). Here some data observed on the 6m telescope with IFP installed in the SCORPIO focal reducer are presented. ... Velocity field . Mkn 1157 was observed 1 Sep. 2002 in the Ha emission line. Texp =32x240 sec, seeing 1.5", IFP260. ... This galaxy was observed September, 23 2000 in the Ha emission line, Texp=32x120 sec, seeing 2.5", IFP260. ... PV Cep was observed at the 6m telescope in May, 25 2003 in the [SII] 6716A with IFP501, Texp=36x200 sec, seeing 1.0". ...

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... Tonight's Sky . ... Observing . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... The 109 objects in a March globular cluster marathon . ... In the March 2014 issue of Astronomy, I challenged readers with the question, How many globular clusters can you see in might night? Taking the Messier marathon as inspiration, I made a list of 109 globular clusters to track down in a single night in March. ... Get instant access to subscriber content on Astronomy.com! ...

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• More spring objects to observe | Astronomy.com
• The Dish Cluster, the Pencil Nebula, and spiral galaxy NGC 2655 | Astronomy.com
• Weird Object: Crab Nebula | Astronomy.com

ATMoB "Messier Marathon Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in an all-night Messier Marathon. ... For each Messier object observed, check the space in the "Seen" column on the attached Messier Checklist and note the time and method of observation. ... Challenge Levels: Beginner Intermediate Master Observe and record information on 25 Messier objects in the attached worksheet. ...

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• Amateur Telescope Makers of Boston ATMoB Observing Awards Program

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

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• HyperLEDA documentation: notes on individual objects and references (view a114)
• Survey of instantaneous 1-22 GHz spectra of 550 compact extragalactic objects
• What was measured?

... Since the reddening found for the stars in Table 13 was small, no reddening correction was attempted. ... These diamonds indicate the positions of very low mass, 3 Myr old, objects from the work of Burrows et al. ... This optical V versus R - I scheme is a very powerful method of detecting very low mass (VLM) objects. ... Because of this, young brown dwarfs are intrinsically no more difficult to observe in the optical than low mass stars at the age of Orionis. ...

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• The AstroStat Slog Little
• The AstroStat Slog Schafer
• The AstroStat Slog MAR

... In this vibrant, eye-opening tour of milestones in the history of our universe, Chris Impey guides us through space and time, leading us from the familiar sights of the night sky to the dazzlingly strange aftermath of the Big Bang. ... Cambridge 2010, ISBN: 978-0521180665, Paperback $28.99 . ... Finding the Big Bang . ... As a prelude the book traces the evolution of some of the notions of modern cosmology from the late Middle Ages up to the final acceptance of the concept of galaxies in 1925. ...

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• ASP: Beacons in the Gloom
• ASP: Taking a Grand Virtual Voyage in the Milky Way
• ASP: Card Games for the Whole Family - with a Cosmic Twist

... Inside the Coma Cluster of Galaxies . ... Moon Venus Mars Skyline . ... Taken on February 20, five different exposures made in rapid succession were used to created this tantalizing telephoto image. ... Venus, named for the Roman goddess of love, and Mars, the war god's namesake, came together by moonlight in this lovely skyview, recorded on February 20 from Charleston, South Carolina, USA, planet Earth. ... Which is older -- the rocks you see on the ground or the light you see from the sky? ...

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• McNeil s Nebula
• A Note on the Perseus Cluster

... Index | ... M1: The Crab Nebula . M1: The Exploding Crab Nebula . Happy Birthday Charles Messier: M1 . M1: Polarization of the Crab . Gamma Ray Crab, Geminga , (M1) . Globular Cluster M5 . Open Cluster M8 in the Lagoon . Wild Duck Open Cluster M11 . ... M16: Dust and an Open Cluster . ... M31: The Andromeda Galaxy . ... The Cepheids of M100 . ... Spiral Galaxy M100 . ... Therefore, only APODs occurring before the beginning of this month are currently indexed. ...

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• APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
• APOD: 2002 February 3 - The Coma Cluster of Galaxies
• APOD: 2008 February 10 - Abell 2218: A Galaxy Cluster Lens

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO Acronyms . ... Survey Telescopes . ... Galaxy Clusters . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... ESO Science Outreach Network . ... Globular cluster Centauri observed with the ESO NTT. ... Milky Way : Star : Grouping : Cluster : Globular . ...

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• ESO - MUSE
• Globular cluster Centauri observed with the ESO NTT | ESO Ireland
• Globular cluster Centauri observed with the ESO NTT | ESO Australia

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Posted on May 20, 2011 | No Comments In our latest night sky guide we look at the stars of late spring and early summer and ponder just what does the brightness of a star really mean. ... Continue Reading.. ... No Comments What can you see in the March 2011 night sky? ... 2 Comments The long dark nights continue through February, but this does give us a chance to see some interesting objects in our night sky. ...

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• Wonders of the February Night Sky | Astronotes
• The Mystery Object of M82 | Astronotes
• Other Galaxies | Astronotes

... Classes . ... Nebula Class Reference . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getCloseViewFov (const StelCore *core=NULL) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getSelectPriority (const StelCore *core) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

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• Stellarium: Supernova Class Reference
• Stellarium: Quasar Class Reference

... Meade Instruments Corporation . ... Autostar Computer Controllers . 497 Autostar . ... One of the most important advances in telescope control in the past 25 years, the Meade #497 Autostar Computer Controller turns the ETX into an automatic celestial object locating system. ... The #497 Autostar Computer Controller plugs into the control panel of ETX-90EC, ETX-105EC, and ETX-125EC telescopes and enables automatic location of more than 30,000 celestial objects. ... about meade | ... Meade 4M | ...

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• Meade Instruments Corporation - Autostar Computer Controller Instruction Manual
• Meade Sports Optics - Binoculars Instruction Manual
• Meade Series 4000 Broadband Nebular Filters

. First page Back Continue Last page Summary Graphics . - high-energy selected targets (multibeam for RFI) . - extended targets (clusters, HII complexes, spiral-arm tangents) . - giant pulses from M33 (~24 ALFA pointings) .

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• The Pleiades
• Your NED Search Results
• Solar System Studies at AO

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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• Observational Techniques: Units and Coordinates Notes
• Siding Spring Survey Follow-up Obs
• Siding Spring Survey 2003 XB22

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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• Galaxy sector, archive 2012
• Workshop 2015
• Galaxy sector, archive 1994