Virgo Cluster Widefield (Jim Medley)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: 12.30 · 13.60 · 194 Prokne · 521 Brixia · HD108137 · HD108301 · HD108348 · HD108560 · HD108614 · HD108775 · HD108915 · HD109416 · HD109439 · HD109486 · HD109520 · HD109628 · HD109684 · IC 3303 · IC 3305 · IC 3311 · IC 3327 · IC 3331 · IC 3344 · IC 3349 · IC 3355 · IC 3356 · IC 3358 · IC 3363 · IC 3371 · IC 3381 · And 97 more.

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Virgo Cluster Widefield

Revision title: Revised

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Virgo Cluster Widefield

Revision title: Revised

Using a Canon 300mm F/4.0 USM. I am impressed at the lack of chromatic aberration in this lens. I underestimated the potential for dew last night and lost about an hour of acquisition before I noticed. Fortunately, I was able to dry everything off with a hair dryer and strap on some dew strips. The fog rolled in around 1 this morning so when I woke up to check, I lost another hour of acquisitions. I focused on Venus with a Bahtinov mask and it held all night. Also, autoguiding turned out to be critical for getting nice round stars. The SkyGuider can't guide in DEC but it did not seem to make much difference. I have learned to re-do the polar alignment once I am on the target and that makes a huge difference as well.

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Title: Revised

Description: Tweaked slightly in Lightroom to adjust vignetting.

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Virginia Astronomers and Astrophotographers
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Status	Advanced success
Started	...
Astrometry.net job	7593774
PixInsight job	DU7ON1XO7RGLBJMN8ZROYURSRVAVH7LI
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h30m59s.70
RA (top/left)	12h25m10s.71
RA (top/right)	12h24m45s.12
RA (bottom/right)	12h36m41s.20
RA (bottom/left)	12h37m18s.89

Dec (center)	+12°44′16″.5
Dec (top/left)	+15°02′39″.1
Dec (top/right)	+10°30′05″.6
Dec (bottom/right)	+10°25′24″.2
Dec (bottom/left)	+14°57′39″.9

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Virgo Cluster Widefield

Revision title: Revised

Virgo Cluster Widefield

Revision title: Revised

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Image Index:

Contribution Index (beta):

Virgo Cluster Widefield

Revision title: Revised

Virgo Cluster Widefield

Revision title: Revised

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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