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CCD Images - Session 326 (2008-11-27)

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Objects Session Notes
Bullet 85P/Boethin - Comet 
Bullet 144P/Kushida - Comet
Bullet NGC 772 - Spiral Galaxy ( Herschel H112-1)
Bullet PGC 509 & PGC 510 - Galaxies (ARP 146)
Bullet Star field in Cygnus (V1363 Cyg)
Bullet NGC 7217 - Spiral Galaxy (Herschel H207-2)
Bullet NGC 2719 and NGC 2719A - Galaxies (ARP 202)
Bullet NGC 1555 (Hind's Variable Nebula)
Bullet IC 112 - Spiral Galaxy with SN 2008hh
Bullet CN Ori - variable star (Type UGZ)
Bullet Astrometric & Photometric Monitoring
- SS Cyg, U Gem  (dwarf nova)
- U And, W And, U Her  (Mira)
- BL Lac (Blazar)
- FO And, RX And, Z And, CY Aqr, TT Ari, Eps Aur, KR Aur, Zet Aur, CV CMi, SY Cnc, R CrB, V CVn, CI Cyg, V1363 Cyg, U Mon, CN Ori, FO Ori, FU Ori, RU Peg, DY Per, GK Per, FG Sge, WZ Sge, RR Tau, ER UMa (variables)
- Barnards Star, Groombridge 1618, Groombridge 1830, HIP 36208, EV Lac, Lalande 21185, Teegardens Star (nearby stars)
- All night session  (11.2 hrs) operated largely under automated control. 
- Ambient Temperature 2 degC (maximum) falling to -2 deg C by end of session. Majority of session around 0 to -1 degC.
- CCD operation of -25 degC 
(at 67% average cooling).  
- main objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 


-

 

85P/Boethin - Comet ("Nasa's missing comet")

Attempted observation of 85P/Boethin  

Comet 85P/Boethin, with an expected magnitude of +8, should have been an 
easy target in this starfield in Capricornus, however there was no sign of any 
comet-like object at or near to the expected position.

Investigating further it was interesting to find out that 85P/Boethin was due to have been a target 
of NASA's EPOXI comet-exploration mission (previously Deep Impact Mission) in December 2008; 
however, the comet was not recovered in time to set up the trajectory for the flyby with 
sufficient accuracy. It is thought that the comet may have broken into pieces too 
small for visual detection. NASA and the Case of the Missing Comet

[ 85P/Boethin is a periodic comet with period of 11.8 years, the 
last time the comet was visible from earth was 1986. In 1997 the comet lay 
too close to the direction of the sun was not seen ] 

The Deep Impact spacecraft will now be rerouted to spacecraft was re-routed to Comet 103P/Hartley 2. 
The Hartley 2 fly-by is scheduled to happen on 2010 November 4.

Image
CCD Image 
3 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 18-32 h UT (#326038-40)

Expected position of 85P/Boethin 
(marked by white circle)

Image
Annotated CCD Image 
Image details as abobe

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144P/Kushida - Comet

144P/Kushida 
(passing through starfield in Aries)

Image
Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 23:42 h UT (#326084-86)

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NGC 772 - Spiral Galaxy (ARP 78 / Herschel H112-1)

NGC 772 - Aries

Image
Annotated CCD Image - Square root scaling
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 21:20 h UT (#326243-47)

  

NGC 772 - detail

Image
Negative CCD Image - Linear scaling
Image details as above

  

Image
Negative CCD Image - Square root scaling
Image details as above

   

Image
False Colour CCD Image 
Square root scaling, False Colour (inverse spectrum)
Image details as above

   
NGC 772 - earlier image (7 years ago)
Image
CCD Image 
5 min exposure, Unfiltered 
2001-11-26, 23:05h UT(#11058)

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PGC 509 & PGC 510 - Galaxies with associated rings (ARP 146)

PGC 509 & PGC 510 / ARP 146 (Cetus)

Image
CCD Image
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 22:26 h UT (#326292-96)

 

PGC 509 & PGC 510 - detail
rings are not resolved in this image

Image
Annotated CCD Image (250% size)
Image details as above

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Star field in Cygnus (V1363 Cyg)

Star field in Cygnus / V1363 Cyg (Cygnus)

Image
CCD Image
3 x 90s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 22:57 h UT (#326309-15)

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NGC 7217 - Spiral Galaxy (Herschel H207-2)

NGC 7217 (Pegasus)

Image
CCD Image - Linear scaling
2 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-27 23:54 h UT (#326388-89)

  

NGC 7217 - detail

Image
False Colour CCD Image - Square root scaling
(Inverse Spectrum)
Image details as above

   
NGC 7217 - earlier image (5 years ago)
Image
CCD Image, 6 x 20 sec exposure (median)
2003-10-17  22:21 to 22:24h UT (#53142-47)

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NGC 2719 and NGC 2719A - Galaxies (ARP 202)

NGC 2719 and NGC 2719A / ARP 202 (Lynx)
Image Image
 CCD Image
5 x 3 min exposure (average combine), 2x2 binning, C Filter 
2008-11-28 00:32h UT (#326412-16)		 CCD Image (Negative)
Image details as left
  
NGC 2719 and NGC 2719A - detail
Image  Image
 CCD Image (200% size)
Image details as above		 CCD Image (Negative, 200% size)
Image details as left

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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
Image
CCD Image
5 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2008-11-28 00:51 hUT (#326420-24)
 

Hind's Variable Nebula - detail
 Image
CCD Image (200% size)
Image details as above
 

Hind's Variable Nebula - detail from 2008-10-05
 Image
CCD Image (200% size)
5 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2008-10-05 03:45 hUT (#310513-17)
 

Hind's Variable Nebula - detail from 2008-02-12
 Image
CCD Image (200% size)
5 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2008-02-12 22:54 hUT (#263234-38)
 

Hind's Variable Nebula - detail from 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)
 

Hind's Variable Nebula - detail from 2007-10-05
Image 
CCD Image (200% size)
5 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2007-10-05 04:38 hUT (#219053-57)
 

Hind's Variable Nebula - detail from 2007-09-11
Image 
CCD Image (200% size)
6 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling, Cropped)
2007-09-11 01:05 hUT (#211121-26)

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IC 112 - Spiral Galaxy with SN 2008hh

IC 112 (Pisces)

Image
CCD Image 
4 x 120s sec exposure (average combine), 2x2 binning, C Filter
2008-11-28 01:07 h UT (#326427-31)

 

IC 112 - detail
Position of SN 2008hh marked by white indicators. 

SN 2008 hh was discovered discovered 2008/11/19.12 by Tim Puckett, T. Crowley 
at magnitude ~ +16.6
(Rochester Supernova site |  SN 2008hh discovery Image)
Image below was taken around 10 day after discovery

Image
Annotated CCD Image (250% size)
Image details as above

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CN Ori - variable star (Type UGZ)

CN Ori (Orion)

Image
Annotated CCD Image 
3 x 45s sec exposure (average combine), 2x2 binning, C Filter
2008-11-28 02:12 h UT (#326479-85)

  

CN Ori - reference stars

Image
Annotated CCD Image
90s sec exposure, 2x2 binning, V Filter
2008-11-28 02:13 h UT (#326483)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 326  (2008-11-27)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site