David's Astronomy Pages Images - Session 597 (2016-02-18)

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Images (S598)

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Session Notes

9P/Tempel - Comet C/2013 US10 (Catalina) - Comet C/2014 W2 (PANSTARRS) - Comet     Abell 24 - Planetary Nebula (PLN 217+14.1) Abell 33 - Planetary Nebula (PLN 238+34.1)     Hickson 61 - Galaxy Cluster (NGC 4169 et al, "The Box") IC 2207 - Spiral Galaxy     NGC 2835 - Spiral Galaxy (UGCA 157) NGC 3041 - Spiral Galaxy NGC 3162 - Spiral Galaxy NGC 3190 - Spiral Galaxy (Part of Hickson 44) NGC 3209 -  Elliptical Galaxy NGC 4361 - Planetary Nebula NGC 5374 - Spiral Galaxy with SN 2016P     Photometric Monitoring - Variables   - RX And, U And, Z And, SS Cyg, U Gem, BL Lac, SZ Lyn, CN Ori, CZ Ori, FO Ori, FU Ori, NV Ori, DY Per, GK Per, ER UMa     Astrometric Monitoring - Nearby Stars   - None

- Late Evening/Night session (6.2 hrs duration). Clear skies. Wind 0-5 mph.  Moon 87% phase - 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).  - Planned objectives of the session were to monitor selected variable and nearby stars. As conditions where good images were also taken of C/2013 US10 (Catalina), two other fainter comets and a number of deep sky objects in Leo, Hydra, Virgo and Coma Berenices

9P/Tempel - Comet

9P/Tempel   (passing through starfield in Coma Berenices) Sun Distance 2.17 AU Comet is marked by white cross-lines Measured magnitude +16.3  (vs. forecast mag +14.4)

CCD Image (50% size) 5 x 45 sec exposure (average combine), 3x3 binning, C Filter 2016-02-19 04:10hUT (#597359-65) 12" LX200R  (at f/10.4) + ST-10XME

9P/Tempel  - detail

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

9P/Tempel - Earlier Image (2005-05-13) (during an earlier orbit around the sun) Sun Distance 1.56 AU

CCD Image 3 x 60s (median combine), clear filter 2005-05-13 22:41 h UT (#86123-25) 8" LX200 + ST-7E

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C/2013 US10 (Catalina) - Comet

C/2013 US10 (Catalina) (passing through starfield in Camelopardalis) Sun distance 1.83 AU

CCD Image Montage (Linear Scale, 50% size) 5 x 15s exposure (average combine), 3x3 binning, C Filter 2016-02-19 00:46h UT (#597114-19) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 US10 (Catalina)  - detail

False Colour CCD Image (Log Scale, 50% size) Inverse Spectrum Image details as above

CCD Image (Square Root Scale, 50% scale) Image details as above

C/2013 US10 (Catalina)  - Attempted Colour Image

Colour CCD Image  (Linear Scale, 50% size) Blue : 6 x 30s, 3x3 binning, B Filter Green : 3 x 20s, 3x3 binning, V Filter Red : 3 x 20s, 3x3 binning, R Filter Frames aligned on comet, 2016-02-19 01:12h UT (#597166-77) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 US10 (Catalina)  - Frames showing Motion over 21 minute period 2016-02-19 00:44 to 01:05h UT

CCD Image Sequence (Linear Scale, 50% size) Frames 15s exposures, aligned on comet, 3x3 binning, C Filter 2016-02-19 00:44 to 01:05h UT (#597114-63) 12" LX200R  (at f/10.4) + ST-10XME

CCD Image (Linear Scale, 50% size) 48 x 15s exposure (average combine, aligned on comet), 3x3 binning, C Filter 2016-02-19 00:55h UT (#597114-63) 12" LX200R  (at f/10.4) + ST-10XME

False Colour CCD Image (Log Scale, 50% size) Inverse Spectrum Image details as above

C/2013 US10 (Catalina)  - Rotational Gradient Processing Analysis of rotational gradient processed images show no evidence of any jets emanating from the comet at time of image (processing using IRIS [http://www.astrosurf.com/buil/us/iris/iris.htm]

Rotational Gradient Processed CCD Image  (10 deg rotation, Linear Scale, 67% size) 48 x 15s exposure (average combine, aligned on comet), 3x3 binning, C Filter 2016-02-19 00:55h UT (#597114-63) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 US10 (Catalina)  - detail

Rotational Gradient Processed CCD Image  (15 deg rotation, Linear Scale, 77% size) Image details as above

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C/2014 W2 (PANSTARRS) - Comet

C/2014 W2 (PANSTARRS) (passing through Cepheus, near boundary with Draco) Sun Distance 2.68 AU

CCD Image (50% size) 3 x 45 sec exposure (average combine), 3x3 binning, C Filter 2016-02-19 03:26hUT (#597304-07) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 W2 (PANSTARRS)  - wider view (comet is marked by white cross-lines)

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

C/2014 W2 (PANSTARRS) - Showing motion over 53 minute period (motion: 10 arc secs/hour)

CCD Image Animation (100% scale, cropped) 2 frames, each 3 x 45 sec exposure (average combine), 3x3 binning, C Filter Frame 1: 2015-04-09 03:26hUT (#597304-07) Frame 2: 2015-04-09 04:19hUT (#597369-72) 12" LX200R  (at f/10.4) + ST-10XME

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Abell 24 - Planetary Nebula (PLN 217+14.1)

Abell 24 / PLN 217+14.1 (Canis Minor) Location of Abell 24 planetary nebula is shown by white circle. It's unfortunately not readily visible due to its faintness and bright background sky due to 87% phase moon.

Annotated CCD Image (50% size) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2016-02-19 00:22h UT (#597084-94) 12" LX200R  (at f/10.4) + ST-10XME

Abell 24 - detail

CCD Image (cropped) Image details as above

Abell 24 - Earlier Image (2016-02-11)

CCD Image 5 x 120s exposure (average combine), 2x2 binning, C filter,   2007-02-17 21:51h UT (#176124-28) 8" LX200 Classic + ST-7E

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Abell 33 - Planetary Nebula (PLN 238+34.1), attempted imaging

Abell 33 /  PLN 238+34.1  (Hydra)  Planetary Nebula is unfortunately not visible in the image due to the object's very low surface brightness and prevailing bright moonlight (87% phase).  The catalogue position and extent of the Pl.Neb is shown by the white circle. The bright star directly south of the nebula is the mag +7.2 star HIP 47369.

Annotated CCD Image (50% scale) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2016-02-19 01:47h UT (#597206-13) 12" LX200R  (at f/10.4) + ST-10XME

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Hickson 61 - Galaxy Cluster (NGC 4169 et al, "The Box")

Hickson 61 (Coma Berenices)

CCD Image (75% scale) 4 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-19 05:05h UT (#597399-403) 12" LX200R  (at f/10.4) + ST-10XME

Hickson 61 - Earlier Image (2005-03-21)

Annotated CCD Image  3 x 60s exposure (average combine), 2x2 binning, C filter 2004-03-21  23:30 to 23:34 h UT (#63127-29) 8" LX200 + ST-7E

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IC 2207 - Spiral Galaxy

IC 2207 (Gemini)

CCD Image (50% scale) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2016-02-19 02:21h UT (#597247-52) 12" LX200R  (at f/10.4) + ST-10XME

IC 2207 - detail

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

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NGC 2835 - Spiral Galaxy(UGCA 157)

NGC 2835 (Hydra) Image taken at altitude of only 6.5 deg, galaxy is only just visible due to high airmass (8.2) and bright moonlight (87% phase) (At Declination -22d 21m, the highest altitude reached by the galaxy at my site is 10.25 deg) Alias : UGCA 157

Annotated CCD Image (55% scale) 9 x 30s exposure (average combine), 3x3 binning, C Filter 2016-02-19 01:34h UT (#597188-98) 12" LX200R  (at f/10.4) + ST-10XME

NGC 2835 - detail

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

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NGC 3041 - Spiral Galaxy

NGC 3041 (Leo)

CCD Image (cropped) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-18 23:32h UT (#597058-60) 12" LX200R  (at f/10.4) + ST-10XME

NGC 3041 - detail

CCD Image (cropped) Image details as above

Negative CCD Image (cropped) Image details as above

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NGC 3162 - Spiral Galaxy

NGC 3162 (Leo)

CCD Image (50% size) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-18 23:42h UT (#597065-57) 12" LX200R  (at f/10.4) + ST-10XME

NGC 3162 - detail

CCD Image (cropped) Image details as above

NGC 3162 - Earlier Image (2016-02-11)

CCD Image (cropped) 2 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-11 22:07h UT (#596190-93) 12" LX200R  (at f/10.4) + ST-10XME

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NGC 3190 - Spiral Galaxy (Part of Hickson 44)

NGC 3190 (Leo)

CCD Image (cropped) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-19 00:05h UT (#597073-77) 12" LX200R  (at f/10.4) + ST-10XME

NGC 3190 - Wider View / Hickson 44 Showing Hickson 44 Members: Spiral Galaxy NGC 3190 (catalog mag +11.9),  Elliptical Galaxy NGC 3193 (catalog mag +12.0),  Spiral Galaxy NGC 3187 / ARP 316 (catalog mag +13.2)

Annotated CCD Image (50% size) Image details as above

Hickson 44 - Earlier Image (2008-02-16)

Annotated CCD Image 5 x 3 min exposure (average combine),  2x2 binning, C Filter  2008-02-16 04:32 h UT (#264476-80)

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NGC 3209 -  Elliptical Galaxy

NGC 3209 (Leo) NB. Stars are trailed due to mount's uncorrected periodic error

Annotated CCD Image (50% scale) 2 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-19 04:36h UT (#597382-83) 12" LX200R  (at f/10.4) + ST-10XME

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NGC 4361 - Planetary Nebula

NGC 4361 (Corvus) Hidden Treasures catalog object 61 [ Hidden Treasures ]

CCD Image (50% size) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2016-02-19 02:49hUT (#597263-72) 12" LX200R  (at f/10.4) + ST-10XME

NGC 4361 - detail

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

NGC 4361 - Earlier Image (2015-04-09)

CCD Image (100% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2015-04-09 22:27hUT (#583036-41) 12" LX200R  (at f/10.4) + ST-10XME

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NGC 5374 - Spiral Galaxy with SN 2016P

NGC 5374 (Virgo)

CCD Image (50% scale) 2 x 90s exposure (average combine), 3x3 binning, C Filter 2016-02-19 04:27h UT (#597376-77) 12" LX200R  (at f/10.4) + ST-10XME

NGC 5374 - detail, showing SN 2016P SN 2016P (Type Ic-BL) was discovered 2016/01/19.192 by Grzegorz Duszanowicz and Michal Zolnowski  (Rochester Supernova site | Discovery Image ) The Image below was taken 31 days after discovery. Supernova 2016P is marked by the white indicator lines

Annotated CCD Image (100% scale, cropped) Image details as above

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