David's Astronomy Pages Images - Session 450 (2011-01-28)

Images (S449)

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Images (S451)

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Session Notes

103P/Hartley - Comet     SZ Lyn - Variable Star (Type DSCT)     Abell 31 - Planetary Nebula (PLN 219+31.1) (attempt)     IC 1748 - Spiral Galaxy IC 2169 - Bright Nebula     NGC 1555 - Reflection Nebula NGC 2481 - Spiral Galaxy NGC 2608 - Spiral Galaxy with split arm (ARP 12) NGC 3437 - Spiral Galaxy     Photometric Monitoring - Variables - RX And, TT Ari, CV_CMi,  SS Cyg, BL Lac, SZ Lyn, GK Per, ER UMa, SU UMa - DY Per, Z And, CN Ori, FU Ori, NV Ori, RU Peg attempts (failed due to cloud)     Astrometric Monitoring - Nearby Stars - DX Cnc, Teegardens Star

- Evening  session (5.8 hrs). - Session operated under semi-automated control, with remote monitoring from indoors computer.  - Ambient Temperature: -3.0°C  (minimum) - CCD operation -30°C (at 63% average cooling).   - main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis. - Notes from 2011-01-28 (start-up problems)

103P/Hartley - Comet

Comet  103P/Hartley  passing through starfield in Monoceros  Comet has down receded (1.6 AU distance from Sun) and is much  dimmer than when last imaged in Oct 2010 (1.1 AU distance from Sun)

Annotated CCD Image (cropped) 3  x 60s exposure (aligned on comet, average combine), 3x3 binning, C Filter  2011-01-28 23:23 hUT (#450329-31) 12" LX200R  (at f/9.7) + ST-10XME

Comet  103P/Hartley - earlier image (2010-10-06)

Annotated CCD Image (cropped) 5  x 30s exposure (aligned on comet, average combine), 3x3 binning, C Filter  2010-10-06 20:25 hUT (#430003-07) 12" LX200R  (at f/9.7) + ST-10XME

Comet  103P/Hartley - earlier image (2010-08-20)

Annotated CCD Image (cropped) 5  x 30s exposure (average combine), 3x3 binning, C Filter  2010-08-20 21:32 hUT (#423018-22) 12" LX200R  (at f/9.7) + ST-10XME

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SZ Lyn - Variable Star (Type DSCT)

SZ Lyn - TimeSeries 1h 35m duration (54% of period)

Time Series  B - 30s exposures (3x3 binning) V - 15s exposures (3x3 binning) R - 15s exposures (3x3 binning) 2011-01-29  01:01 h UT to 02:37 h UT (#450419-566) 12" LX200R  (at f/9.7) + ST-10XME

SZ Lyn - Photometric Data (BVR) plotted against phase - Time Series

SZ Lyn - Photometric Data (BVR) plotted against phase - Nightly Points

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Abell 31 - Planetary Nebula (PLN 219+31.1)  (attempted observation)

Abell 31 / (PLN 219+31.1)  (Cancer) (planetary nebula is too diffuse to be seen in this image)

CCD Image (cropped) 35 x 90sec exposure (average combine),  3x3 binning, C Filter 2011-01-28 22:46 h UT  (#450304-08) 12" LX200R  (at f/9.7) + ST-10XME

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IC 1748 - Spiral Galaxy

IC 1748 (Aries)

CCD Image (cropped) 2 x 120s exposure (average combine), 3x3 binning, C Filter  2011-01-28 21:57 hUT (#450267-70) 12" LX200R  (at f/9.7) + ST-10XME

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IC 2169 - Bright Nebula

IC 2169  (Monoceros)

CCD Image (50% size) 8 x 45sec exposure (average combine),  3x3 binning, C Filter 2011-01-28 23:42 h UT  (#450349-58) 12" LX200R  (at f/9.7) + ST-10XME

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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

CCD Image (73% size, cropped) 5 x 60s 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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NGC 2481 - Spiral Galaxy

NGC 2481 (Gemini)

Annotated CCD Image (cropped) 4 x 120s exposure (average combine), 3x3 binning, C Filter  2011-01-28 22:22 hUT (#450281-85) 12" LX200R  (at f/9.7) + ST-10XME

NGC 2481 - Previous Image 2011-01-12

Annotated CCD Image (cropped) 3 x 120s exposure (average combine), 3x3 binning, C Filter  2011-01-12 23:39 hUT (#444547-49) 12" LX200R  (at f/9.7) + ST-10XME

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NGC 2608 - Spiral Galaxy with split arm (ARP 12)

NGC 2608  / ARP 12 (Ursa Major)
CCD Image (100% size, cropped) 5 x 180s sec exposure (average combine), 3x3 binning, C Filter 2011-02-29 00:13 h UT (#450377-83) 12" LX200R  (at f/9.7) + ST-10XME		Negative CCD Image (100% size, cropped) Image details as left

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NGC 3437 - Spiral Galaxy

NGC 3437 (Leo)

CCD Image (cropped) 3 x 120sec exposure (average combine),  3x3 binning, C Filter 2011-01-29 00:31 h UT  (#450386-88) 12" LX200R  (at f/9.7) + ST-10XME

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