SNRs G114.3+00.3 & G116.5+01.1, Ha (Stephen Garretson)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 6 Cas · HD220868 · HD220963 · HD221035 · HD221037 · HD221038 · HD221143 · HD221325 · HD221333 · HD221393 · HD221406 · HD221438 · HD221584 · HD221585 · HD221639 · HD221670 · HD221671 · HD221741 · HD221900 · HD221935 · HD222217 · HD222275 · HD222407 · HD222647 · HD222670 · HD222682 · HD223057 · HD223070 · HD223358 · HD223386 · And 72 more.

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SNRs G114.3+00.3 & G116.5+01.1, Ha

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SNRs G114.3+00.3 & G116.5+01.1, Ha

Here's the Ha data of this area in Cassiopeia. For context, it's just south of ced 214 and northwest of Caph, with the Cave Nebula would be the western point of a roughly equilateral triangle containing both SNRs. The SNR names carry the G for Dave Green, who published this catalog. G116.5 is the larger object top center. The Little Rosette Nebula, aka Sharpless 2-170, is the bright object top right; note its resemblance [minus the large central "hole"] to the much much larger Rosette Nebula. G114 is near G116, but isn't readily obvious yet; more data is needed to locate it. When conditions permit I will gather OIII data for an HOO version. Target area is quickly becoming hard to catch; I need to start as soon as it's dark and chase it as it descends in the west. The Borg 55 triplets are the asset that makes this possible.

[51] guided 600s Ha subs
total integration: 8 hours, 30 minutes

capture:
For this image each of the three imaging setups is composed of:
Borg 55FL f/3.6, 6 element Petzval Astrograph
ASI 2600MM Pro
Gerd Neumann Camera Tilt Adjuster
ZWO EAF
ZWO EFW
Chroma 3nm Ha filter
ADM Aimer

guiding:
William Optics 50 x 200 Guide Scope
ASI 290M Mini

Paramount MX+

from the Beevo Dome

TheSkyX, SGP, PHD2
PixInsight, Mac OS Photos, Preview

The refractors!

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Status	Advanced success
Started	...
Astrometry.net job	9024631
PixInsight job	ZPWT22XB2OL1GT79YSSNDHX8RZOGL5NV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h45m33s.32
RA (top/left)	00h02m16s.49
RA (top/right)	00h05m34s.61
RA (bottom/right)	23h24m52s.26
RA (bottom/left)	23h29m21s.78

Dec (center)	+62°29′20″.3
Dec (top/left)	+59°14′56″.8
Dec (top/right)	+65°37′13″.2
Dec (bottom/right)	+65°34′10″.7
Dec (bottom/left)	+59°12′14″.10

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SNRs G114.3+00.3 & G116.5+01.1, Ha

SNRs G114.3+00.3 & G116.5+01.1, Ha

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Image Index:

Contribution Index (beta):

SNRs G114.3+00.3 & G116.5+01.1, Ha

SNRs G114.3+00.3 & G116.5+01.1, Ha

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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