vdB 9 - Reflections in Cassiopeia (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD17929 · HD18056 · LBN 643 · LDN 1355 · LDN 1357 · LDN 1358 · RZ Cas · SU Cas

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vdB 9 - Reflections in Cassiopeia

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-FqTnbVw/A

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vdB 9 - Reflections in Cassiopeia

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-FqTnbVw/A

vdB 9, also known as van den Bergh 9, is a weak reflection nebula in Cassiopeia. It's about 3 light years wide and is located about 1400 light years away. The nebula is illuminated by the bright star HD 17463 (SU Cass) at its center. It's that really bright star in the top right quarter of the image blending into that huge dark nebula (LDN 1357).

The dust in vdB 9 reflects starlight from the hot star SU Cassiopeia, giving the nebula a blueish tint. This is a characteristic of classical reflection nebulas. SU Cass is a Cepheid variable star, but it's too faint to see with the naked eye.

vdB 9 appears like a light blue translucent gel that smears across the screen as it ducks behind the dark nebulae LDN 1357 and LDN 1355 which snake across the sky until they connect with LDN 1358 towards the bottom right quarter of the image.

The entire region is permeated with dust. In this 22 hour exposure, the dust reflects the light of the stars and appears in yellow, brown, red, or blue natural color tones.

vdB Reflection Nebula

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Other
Unknown

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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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	8780467
PixInsight job	3W1G19OGALCNFR5RL58JGC64EF9H3EVL
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h51m39s.279
RA (top/left)	02h41m17s.733
RA (top/right)	02h55m17s.671
RA (bottom/right)	03h01m59s.100
RA (bottom/left)	02h47m43s.870

Dec (center)	+69°17′23″.55
Dec (top/left)	+69°18′20″.61
Dec (top/right)	+68°26′05″.86
Dec (bottom/right)	+69°14′09″.11
Dec (bottom/left)	+70°08′24″.12

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vdB 9 - Reflections in Cassiopeia

vdB 9 - Reflections in Cassiopeia

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vdB 9 - Reflections in Cassiopeia

vdB 9 - Reflections in Cassiopeia

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