... The measurements extend to a lower 1.5 GHz limit of 1.0 mJy and comprise a complete sample with 1.5-GHz flux density 2.5 S1.5 J/AuJPh/47/145 VLA Survey of Rich Clusters of Galaxies II (Slee+, 1994) J/AuJPh/49/977 VLA Survey of Rich Clusters of Galaxies III (Slee+, 1996) ================================================================================ A VLA Survey of Rich Clusters of Galaxies II. ... Note (3): An elliptical Gaussian was fitted to the source. ...

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• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
• A 20 cm VLA survey of Abell clusters of galaxies
• Documentation: LEDA: parameter: vvir

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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... A Note on the Perseus Cluster . ... CXC , NASA Explanation: A truly enormous collection of thousands of galaxies, the Perseus Cluster - like other large galaxy clusters - is filled with hot, x-ray emitting gas. The x-ray hot gas (not the individual galaxies ) appears in the left panel above, a false color image from the Chandra Observatory . ... Publications with keywords: galaxy cluster - X-ray . Publications with words: galaxy cluster - X-ray . ... Dwarf Galaxies in the Coma Cluster . ...

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• Астронет > A Note on the Perseus Cluster
• XWare > APOD

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 September 12 . A Note on the Perseus Cluster . ... CXC , NASA . Explanation: A truly enormous collection of thousands of galaxies, the Perseus Cluster - like other large galaxy clusters - is filled with hot, x-ray emitting gas. ... So what note is the Perseus Cluster playing? ... About APOD | ... NASA Official: Jay Norris. ...

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• APOD: 2009 September 21 - Abell 370: Galaxy Cluster Gravitational Lens
• APOD: 2007 May 18 - M13: The Great Globular Cluster in Hercules
• APOD: 2012 June 14 - M13: The Great Globular Cluster in Hercules

... About ATMoB . ... The Observing Committee is starting an Observing Awards Program to promote observing among the membership of the Amateur Telescope Makers of Boston. ... Participant must be a current member of the Amateur Telescope Makers of Boston . ... To qualify for your Observing Award Certificate, turn in your worksheet and drawings to an ATMoB Observing Committee member or observing@atmob.org . ... This Excel sheet has useful macros. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Glxy S0+? ... Pl Neb 3+3 Mag Alias/Notes 14.5 PK 38-25.1 (STAR) 14 14.6 UGC 11546 MCG 0-52-4 CGCG 373-5 2ZW82 PGC 64586 14.7 CGCG 373-38 KARA881 PGC 65027 12.7 Sanduleak 2-385 PK 27-9.1 PNG 27.6-9.6 (STAR) 12 12.7 PK 45-2.1 PNG 45.4-2.7 Minkowski 1-70 Vyssotsky 2-2 6.7 8.3 10.8 Sanduleak 2-380 Jonckheere 475 PK 33-2.1 12.4 12.5 Sanduleak 2-382 PK 29-5.1 PNG 29.2-5.9 7.5 10.6 9 14.2 Sanduleak 2-384 PK 33-6.1 PNG 33.1-6.3 13.3 Sanduleak 2-388 PK 34-6.1 Open Cl 10.0 cluster? ...

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• http://www.wro.org/neumann/RNGC_Objects_by_Constellation-Aql.pdf
• http://www.wro.org/neumann/RNGC_Objects_by_Constellation-Cep.pdf
• http://www.wro.org/neumann/RNGC_Objects_by_Constellation-Lyr.pdf

HUBBLE SPACE TELESCOPE DAILY REPORT #1067 PERIOD COVERED: 0700 EST Daily Status Report as of 034/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed Three Sets of WF/PC-2 5475 (A Snapshot Survey for Blue Stragglers in Magellanic Cluster Cores) The WF/PC-2 was used to make short exposure snapshot images of the blue straggler stars located in populous clusters NGC-2173, and NGC-458. ... A total of four images were received and displayed. ... Two images were received and displayed. ...

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• http://www.stsci.edu/ftp/observing/status_reports/old_reports_96/hst_status_05_02_96
• Phase I Target Naming Conventions
• Selected telescopes I have observed with

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

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• ASP: Books of Note
• ASP: Let Venus Be My Guide
• ASP: Contents, May/June 1999

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

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• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• NGC4666: Secrets of a Starburst Galaxy | Astronotes
• Monthly Sky Notes | Astronotes

. N OTE: . Only clusters with R<60 kpc were used to compute the spatial parameters and metallicity gradients for all subsystems except the corona. The numbers in parantheses give the number of clusters for which the corresponding parameter is known. The X O scale length of the old halo is strongly distorted by the observed asymmetry of the distribution of the corresponding clusters projected onto the XY plane ( Fig. 4А ) . discussion in the text | previous table .

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• Globular clusters with anomalously small masses, figures
• Vladimir Marsakov Publication List
• Population of Galactic globular clusters, figures

... 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 - VIMOS Science Verification Programs at Melipal/UT3
• Globular cluster Centauri observed with the ESO NTT | ESO Ireland
• Globular cluster Centauri observed with the ESO NTT | ESO United States

... Observing . ... Subscriber Extras . ... Web Extras . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Observing springtime deep-sky objects with a large telescope . ... Web Extra: Astronomers animate one of the largest galaxy clusters ever observed . ... At the center of the Phoenix Cluster, a large elliptical galaxy lurks where the hot gas is ejected, giving off unprecedented levels of X-rays, which have been observed by the orbiting Chandra X-ray telescope. ...

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• globular clusters | Astronomy.com
• open clusters | Astronomy.com
• stars and star clusters | Astronomy.com

... You are here: start ТЛ correlator ТЛ records ТЛ v275b . Trace: т?? v275b . correlator:records:v275b . v275b . ... Observers Wiki . Tid observed with 2 antennas, DSS34 observing RCP and DSS45 observing LCP (going to same recorder, so same data stream contains both polarizations). ... Use AIPS task UVFLG , example inputs to flag all т??badт?? pol channels: . ... Flag file: v275b.uvflg . ... Comments: . ... correlator/records/v275b.txt ТЗ Last modified: 2014/11/11 18:08 (external edit) . ...

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• lbaops:special-vlba-lba-2012-notes [ATNF VLBI Wiki]
• RV Tau Variables in Globular Clusters - clues on their nature?
• Pulsar Group Observing/Setup

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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• How Ceilidh works, Ceilidh Course Notes, User Guides etc.

... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... SUBJECT: 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... which will be held in Beijing, P.R. China, from August 25-29, 2014, hosted by Chinese Academy of Sciences . ... China), . ... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. ...

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• MAO NASU :: Topic: The DRAGON globular cluster simulations: a million stars,

. First page Back Continue Last page Summary Graphics .

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• ABPP GUI notes
• Spectral-Line Observing
• AGES Observing Checklist for CIMA 3.0

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

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• On current distance scales for open clusters

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

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• http://www.mso.anu.edu.au/seminars/abstracts/20160304-1400.html
• http://www.mso.anu.edu.au/seminars/abstracts/20150220-1400.html
• Dougal Mackey - CV

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

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... This file clusters .dat 173 32 The 32 clusters in the Southern SHARC sample selfn.dat 20 1092 Selection function for the Southern SHARC survey (as shown in Figure 7) fields.dat 98 66 ROSAT observations used in the Southern SHARC survey (Table A1) extsrcs.dat 112 96 All extended X-ray sources detected by the Southern SHARC survey (Table B1) numflux.dat 21 32 Number- flux points for Southern ... For clusters with pArea = 100, this amounts to multiplying the measured count rate by 1.25. ...

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• The AstroStat Slog cosmology
• The AstroStat Slog Jargon
• The AstroStat Slog Blog Archive On-line Machine Learning Lectures and Notes