The Border between Cassiopeia and Cepheus (Wei-Hao Wang)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Bubble nebula · IC 1470 · M 52 · NGC 7538 · NGC 7635 · NGC 7654 · The star 10Tau · The star 11Peg · The star 16Psc · The star 1Cas · The star 25Aqr · The star 30Cep · The star 44Psc · The star 4Cas · The star 5Psc · The star λPsc

Image of the day 04/09/2016

The Border between Cassiopeia and Cepheus, Wei-Hao Wang

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The Border between Cassiopeia and Cepheus

Link: https://www.flickr.com/photos/weihaowang/26272836595/sizes/o/

Image of the day 04/09/2016

Powered byPixInsight

The Border between Cassiopeia and Cepheus

Link: https://www.flickr.com/photos/weihaowang/26272836595/sizes/o/

This is a six-frame mosaic. The overlap between the six frames is very large along the east-west direction, so the total FOV is probably only slightly larger than a standard four-frame mosaic. The original image has 125 Mega pixels.

Bonus track:

Rev. B is a four-frame mosaic image of a wider area made with the Sigma APO 180mmm/F2.8 at F2.8. Each frame has an exposure time of 42 minutes. The camera is also a modified Nikon D800.

Rev C is a two-frame mosaic image of an even wider area made with the Sigma Art 50mm/F1.4 at F4.0. The total exposure time is 1.0 hr. Same camera.

These two wide-field images were used to construct models of the sky gradient in the main mosaic, to achieve a flat background and a seamless mosaic. Feel free to use these images as your finding chart to look for your future imaging targets.

Rev E (final) is a reprocessing in 2020, particularly with the help from starnet++.

The original image has 125 mega pixels. The one uploaded here is a 0.5x reduction. Enjoy.

Original
B
C
Final
E

Deep Sky Mosaics
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Status	Advanced failed
Started	...
Astrometry.net job	3288700
PixInsight job	JOJEF4HE1YHQUIG4F7OQWCA9TVNEOCCN
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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Image of the day 04/09/2016

The Border between Cassiopeia and Cepheus

Image of the day 04/09/2016

The Border between Cassiopeia and Cepheus

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Image of the day 04/09/2016

The Border between Cassiopeia and Cepheus

Image of the day 04/09/2016

The Border between Cassiopeia and Cepheus

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