NGC 4725 & LoTr 5 (David Krause)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 831 · IC 832 · NGC 4712 · NGC 4725 · NGC 4747 · PK339+88.1

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NGC 4725 & LoTr 5

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NGC 4725 & LoTr 5

Here are three galaxies and a planetary nebula in one frame. NGC 4725 is the largest galaxy in this picture, spanning 100,000 light years wide and approximately 41 million light years from us. It accompanied by galaxies NGC 4712 and NGC 4747. Lotr5 is the planetary nebula (stands for Longmore-Tritton 5, not Lord of the Rings…) and it is one of the largest planetary nebula known, with a diameter of almost 4 light years. The central star of this nebula is actually a binary star system where two stars are orbiting each other, making it also a variable star.

This was a difficult one for us to process. These targets are a little small for our tiny refractor telescope, plus we use a color cam. We captured broadband data for the galaxies and narrowband data for the nebula which we then combined to attempt to get the best of both worlds. Having a color camera does have its limitations, but we’re happy with the result.

WO Redcat 71 Group
Cloudy Nights
The OSC Club (One Shot Camera)
Imaged with N.I.N.A.
N.I.N.A. Users
North Carolina Astronomers
Narrowband imaging
Antlia ALP-T 5nm Dual Narrowband Filter
Cooled Color Cams

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	9277473
PixInsight job	T4RWU07DYWRRCBQJHACCSFW7CBU1EUYV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h52m48s.48
RA (top/left)	12h51m13s.80
RA (top/right)	12h47m08s.30
RA (bottom/right)	12h54m21s.77
RA (bottom/left)	12h58m32s.00

Dec (center)	+25°41′13″.3
Dec (top/left)	+27°03′38″.6
Dec (top/right)	+25°04′27″.8
Dec (bottom/right)	+24°18′42″.3
Dec (bottom/left)	+26°17′04″.6

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NGC 4725 & LoTr 5

NGC 4725 & LoTr 5

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NGC 4725 & LoTr 5

NGC 4725 & LoTr 5

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