Messier 100 "Deep Field" (Stefan)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 783 · M 100 · NGC 4312 · NGC 4321 · NGC 4322 · NGC 4323 · NGC 4328 · The star Zubeneschamali (βLib)

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Messier 100 "Deep Field"

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Messier 100 "Deep Field"

I used a number of clear nights in spring to get a very deep image of the field around M100. The first night (31 March 2020), a minor planet nearly crossed M 100 (note the faint line right below M 100). Most likely, this is (37349) 2001 SV291 with a magnitude of 18.0 mag. It was easily glimpsed on the 300s frames.

This picture shows really a frame at the edge of the Virgo galaxy cluster and getting quite deep, I suppose most of the faint spots in the background are galaxies rather than stars.

Seeing was great for Luminance (1.5-2.0 arcsec, averaging at 1.8 arcsec) and Green but got significantly worse for Red and Blue. This lead to strange star colors as the stars in Green were much tighter than in Red and Blue. It took me a while to compensate for this in PI.

Final
Original
B
C
D

B

Description: M 100 - Crop @100%

Uploaded: ...

C

Description: NGC 4312 - crop@66%

Uploaded: ...

D

Description: PGC 40045 and background cluster - crop@66%

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3650243
PixInsight job	YIZMUQD90T7VGJ4J02G6R57XLHY8XNUU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h22m53s.765
RA (top/left)	12h24m43s.276
RA (top/right)	12h21m11s.635
RA (bottom/right)	12h21m04s.494
RA (bottom/left)	12h24m35s.626

Dec (center)	+15°42′59″.20
Dec (top/left)	+16°01′14″.38
Dec (top/right)	+16°03′35″.34
Dec (bottom/right)	+15°24′41″.42
Dec (bottom/left)	+15°22′21″.54

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Messier 100 "Deep Field"

Messier 100 "Deep Field"

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Messier 100 "Deep Field"

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