David's Astronomy Pages CCD Images - Session 459 (2011-02-28)

Images (S458)

Images Sessions

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Images (S460)

Objects	Session Notes
M41 - Open Cluster M44 - Open Cluster NGC 1555 - Reflection Nebula Variable Stars Photometric Monitoring - Variables - RX And, TT Ari, FS Aur, KR Aur, T Aur, CV CMi, SS Cyg, U Gem, BL Lac, RZ LMi, SZ Lyn, DY Per, GK Per, RR Ta, SU Tau, ER UMa, SU UMa - SY Cnc, FU Ori attempt (cloud) Astrometric Monitoring - Nearby Stars - None	- Early evening  session (3.9 hrs), - Session operated under semi-automated control, with remote monitoring from indoors computer.  - Ambient Temperature: +2.0 deg C  (minimum) - CCD operation -25 degC (at 62% average cooling).   - main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis.

M41 - Open Cluster

M41  (Canis Major)

CCD Image Mosaic (cropped, 33% size) 30sec exposure,  3x3 binning, C Filter 2011-02-28 21:28 h UT  (#459135-46) 12" LX200R  (at f/9.7) + ST-10XME

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M44 - Open Cluster

M44  (Canis Major)

CCD Image Mosaic (20% size) 15 sec exposure,  3x3 binning, C Filter 2011-02-28 21:53 h UT  (#459151-78) 12" LX200R  (at f/9.7) + ST-10XME Larger Image (50% size)

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NGC 1555 - Nebula ("Hind's Variable Nebula")

NGC 1555 - "Hind's Variable Nebula" (Taurus)  The Nebula is also known as  "Struve's Lost Nebula" and "Burnham's Nebula" The adjacent bright star is variable star T Tau  [ NGC 1555 Page ]

CCD Image (73% size, cropped) 5 x 90s exposure (average combine),  3x3 binning, C Filter, Linear brightness scaling 2011-02-28 19:49 hUT (#459065-69) 12" LX200R  (at f/9.7) + ST-10XME

Hind's Variable Nebula - 2011-01-28

CCD Image (73% size, cropped) 5 x 90s exposure (average combine),  3x3 binning, C Filter, Linear brightness scaling 2011-01-28 22:11 hUT (#450274-78)

Hind's Variable Nebula - 2007-11-28

CCD Image (200% size) 5 x 180s exposure (average combine),  2x2 binning, C Filter, Linear brightness scaling 2007-11-28 21:53 hUT (#237109-13)

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Variable Stars

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