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Comet C/2012 K5 ( LINEAR )

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DATE: 2012-12-31

Exposures 2 x 300 sec on each RGB filter, total exposure time 30 min - Bin 1.

North is up - date and time: 31.12.2012, from 16:40 UTC to 17:17 UTC.

RGB combination (Click for a larger view 1600 x 1600 px)

 

 

DATE: 2012-12-30

Exposures 12 x 60 sec on each RGB filter, total exposure time 36 min - Bin 1. To the up (North) is visible the anti-tail.

North is up - the image is cropped, date and time: 30.12.2012, from 17:06 UTC to 17:48 UTC.

RGB combination (Click for a larger view)

 

The same image with star trails removed

RGB combination (Click for a larger view)

 

DATE: 2012-12-27

1. This is the image of C 2012 K5 (LINEAR) in RGB with guiding on the comet nucleus. Exposures 10 x 30 sec on each RGB filter, total exposure time 15 min - Bin 1.

North is up and the FOV is about 32 arcsec (slight crop due to frames overlap), date and time: 27.12.2012, from 21:37 UTC to 22:06 UTC.

RGB combination (Click for a larger view 1600 x 1600 px)

 

 

 

2.Exposures 6 x 60 sec on each RGB filter, total exposure time 18 min - Bin 1. The comet was very fast and I have to track it using correction RA: -15.4 arcces, and DEC: -4.5 arcsec. The image is centered at about RA: 08h 19m 24s Dec: +59°14'26".

North is up and the FOV is about 24 arcsec (crop due to frames overlap), date and time: 27.12.2012, from 22:51 UTC to 23:18 UTC.

RGB combination (Click for a larger view 1200 x 1200 px)

 

3. This is the composite image of C 2012 K5 (LINEAR). The stars were imaged separately for 18 min (6x60 sec on each RGB) - Bin 1 and added for aesthetic effect. The image is centered at about RA: 08h 19m 24s Dec: +59°14'26".

North is up and the FOV is about 40 arcsec (original FOV), date and time: 27.12.2012, from 22:51 UTC to 23:18 UTC.

RGB combination (Click for a larger view 2000 x 2000 px)

 

Details

Optic(s): RC 12" with Astro-Physics corrector @ f/5
Mount: ASA DDM85 Premium
Camera: ATIK 4000 - monochrome CCD – 2048 x 2048 px ; 16x16 mm; 7.4 µm x 7.4 µm
Filters: Astronomik II, SupaSlim TrueTechnology Computerized Filter Wheel
Dates/Times: 27, 30 and 31 of December 2012
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exposure Details:

See the texts above

More details: Dark frames reduction
Guiding: All subexposures are unguided
Processing:

PixInsight / PS

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All Contents copyright Velimir Popov unless otherwise noted.