David's Astronomy Pages Images - Session 580 (2015-02-20)

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Images (S581)

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Session Notes

C/2014 Q2 (Lovejoy) - Comet     Abell 21 - Planetary Nebula (Medusa Nebula)     M61 - Spiral Galaxy     UGC 5295 - Spiral Galaxy     Photometric Monitoring - Variables   - FO And, IW And, RX And, U And, W And, FS Aur, KR Aur, CV CMi, SY Cnc, SS Cyg, U Gem, BL Lac, RZ LMi, SZ Lyn, CN Ori, CZ Ori, FO Ori, FU Ori, NV Ori, DY Per, GK Per, RR Tau, SU Tau, ER UMa     Astrometric Monitoring - Nearby Stars   - HH And, Groombridge 34, DX Cnc, CN Leo, Teegarden's Star

- Evening session (4.4 hrs duration).   - Session operated under semi-automated control, with remote monitoring from indoors computer.   - Ambient Temperature:  Temperature falling progressively to minimum of -3 degC before rising slightly to -2°C. - CCD operation -30°C (at 64% average cooling).  - Main objectives of the session was to monitor selected variable stars & nearby stars and to take gallery images of a range of deep sky objects.   -   -

C/2014 Q2 (Lovejoy) - Comet

C/2014 Q2 (Lovejoy) (Passing through starfield in Perseus) Sun distance 1.33 AU

CCD Image (Linear Scale, 70% size) 6 x 10 sec exposure (average combine), 3x3 binning, C Filter 2015-02-20 20:04hUT (#580020-26) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 Q2 (Lovejoy) - Detail

CCD Image (Square root scale, 70% size) Image details as above

C/2014 Q2 (Lovejoy) - Earlier Image, 2014-12-30 (Passing through starfield in Lepus) Sun distance 1.37 AU

CCD Image (Linear Scale, 50% size) 6 x 15 sec exposure (average combine), 3x3 binning, C Filter 2014-12-30 20:04hUT (#578114-19) 12" LX200R  (at f/10.4) + ST-10XME

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Abell 21 - Planetary Nebula (Medusa Nebula)

Abell 21 / PLN 205+14.1 (Gemini)

CCD Image Mosaic (75% size) 4 x 90 sec exposure, 3x3 binning, C Filter 2015-02-20 21:17hUT (#580139-43) 12" LX200R  (at f/10.4) + ST-10XME

Abell 21 - Earlier Image (2006)

CCD Image 12 x 2 min exposure (average combine), 2x2 binning, C Filter 2006-11-18 02:22h UT (#153222-33) 8" LX200 Classic + ST-7E

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M61 - Spiral Galaxy

M61 (Virgo)

CCD Image (50% size) 90 sec exposure (single frame), 3x3 binning, C Filter 2015-02-21 00:04hUT (#580349) 12" LX200R  (at f/10.4) + ST-10XME

M61 - detail

CCD Image (100% size, cropped) Image details as above

M61 - earlier image (2011)

CCD Image - Cropped, Linear scaling 3 x 120s sec exposure (average combine), 3x3 binning, C Filter 2011-03-07 23:35h UT (#464214-18) 12" LX200R  (at f/9.7) + ST-10XME

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UGC 5295 - Spiral Galaxy

UGC 5295 & adjacent galaxies (Virgo)

Annotated CCD Image (75% size, cropped) 3 x 90 sec exposure (average combine), 3x3 binning, C Filter 2015-02-20 22:10hUT (#580208-10) 12" LX200R  (at f/10.4) + ST-10XME

UGC 5295 - detail

CCD Image (Log Scale, 100% size, cropped) Image details as above

UGC 5295 - wider view

CCD Image (Linear scaling, 50% size) Image details as above

UGC 5295 - earlier wide view (2014-12-31)

CCD Image (Linear scaling, 50% size) 4 x 90 sec exposure (average combine), 3x3 binning, C Filter 2014-12-31 00:02hUT (#578324-28) 12" LX200R  (at f/10.4) + ST-10XME

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