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

Objects Session Notes
Bullet M41 - Open Cluster
Bullet M44 - Open Cluster
   
Bullet NGC 1555 - Reflection Nebula
   
Bullet 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)

   
Bullet 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°C  (minimum)
- CCD operation -25°C (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)
Image
CCD Image Mosaic (cropped, 33% size)
30s 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)
Image
CCD Image Mosaic (20% size)
15s 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 ]

Image
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

Image
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

 Image
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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