Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  IC 3718  ·  M 58  ·  M 59  ·  M 60  ·  M 89  ·  M 90  ·  NGC 4531  ·  NGC 4550  ·  NGC 4552  ·  NGC 4564  ·  NGC 4567  ·  NGC 4568  ·  NGC 4569  ·  NGC 4579  ·  NGC 4607  ·  NGC 4621  ·  NGC 4639  ·  NGC 4647  ·  NGC 4649  ·  NGC 4654  ·  Siamese Twins
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More lounging around Coma Berenices, 



    
        

            Kharan
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            Kharan
More lounging around Coma Berenices
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More lounging around Coma Berenices

Technical card

Imaging telescopes or lenses: Teleskop Service INED70 Apochromatic refractor

Imaging cameras: QHYCCD QHY9M

Mounts: Skywatcher NEQ6 PRO Synscan

Guiding telescopes or lenses: Skywatcher 9x50 finderscope

Guiding cameras: QHYCCD QHY5L-IIc

Focal reducers: William Optics P-Flat 3

Software: Pixinsight

Filters: Baader L 2''  ·  Baader Blue 2"  ·  Baader Green 2"  ·  Baader Red 2"

Accessory: QHYCCD QHY 2" Filter wheel


Dates:March 15, 2015

Frames:
Baader Blue 2": 10x60" (10') -20C bin 2x2
Baader Green 2": 10x60" (10') -20C bin 2x2
Baader L 2'': 15x180" (45') -20C bin 1x1
Baader L 2'': 5x300" (25') -20C bin 1x1
Baader Red 2": 10x60" (10') -20C bin 2x2

Integration: 1h 40'

Flats: ~10

Bias: ~50

Avg. Moon age: 23.97 days

Avg. Moon phase: 31.12%


Basic astrometry details

Astrometry.net job: 572153

RA center: 12h 40' 3"

DEC center: +12° 11' 31"

Orientation: 178.765 degrees

Field radius: 1.964 degrees


Resolution: 3306x2481

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Description

This was supposed to be an easy session. Alas, just when you think you have things under control with one setup, something bites you in the ass. In practise I got around to actual imaging at 1am, meaning color data really fell short.

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Revisions

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    Original
  • Final
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    B

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