Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3) (Greg Erianne)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD12819 · HD13686 · HD13798 · HD13799 · HD13830 · HD13898 · HD14218 · HD14328 · HD14441 · HD14510 · HD14617 · HD14632 · HD14695 · HD15022 · HD15069 · HD15102 · IC 1795 · LBN 641 · LBN 646 · LBN 647 · LDN 1359 · NGC 896

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Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

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Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

HB3 has an angular FOV of about 1°.5 × 2.0°, is about 6,300 light years from Earth, and is one of the largest SNRs. It is believed to have been generated about 29,000 years ago and has mainly been studied by using radio spectra and magnetic field measurements. This SNR has an interaction with W3, a major star-forming region near the Fish Head Nebula (IC 1795).

HB 3 is classified as having a SNR shell structure containing areas of Ha, SII and OIII. This SNR is in the constellation Cas and is very close to the Heart Nebula (IC 1805) and the Fish Head Nebula (IC 1795). In fact, if you look in the upper right-hand corner, you can see the outline of the Fish Head.

With the weather here in VT, I started this project in November 2023 and didn't take my last image until January 2, 2023! All that, and I only wound up with about 9.5 hours on the target.

Askar 107PHQ w/ 0.7x reducer
ASI2600MM Pro with Antlia LRGB and SHO 2" filters in a ZWO 7-position EFW
ZWO EAF, ZWO AM5
Svbony SV106 guide scope with an ASI178MM guide cam

Processed with PixInsight and Adobe Photoshop.

Original
B
Final
C

B

Title: SNR 132.6+01.5 (HB-3, HBH-3) (Brightened to reveal highlights)

Description: I brightened this image of SNR G132.6+01.5 to see if any new details would pop out. Saw a couple of new things in there. Like this one better.

Uploaded: ...

C

Title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

Description: I finally had a clear night to image the RGB stars for this supernova. Much better than the narrowband stars, I think!

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	9095245
PixInsight job	WOC8RUEJSM8NOZMB9BSX9OC8Z618IG4D
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h17m57s.99
RA (top/left)	02h07m17s.47
RA (top/right)	02h28m39s.16
RA (bottom/right)	02h29m15s.29
RA (bottom/left)	02h06m39s.61

Dec (center)	+62°48′11″.9
Dec (top/left)	+61°58′35″.3
Dec (top/right)	+61°58′39″.1
Dec (bottom/right)	+63°34′36″.5
Dec (bottom/left)	+63°34′33″.3

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Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

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Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

Supernova Remnant HB-3 (SNR 132.6+01.5 , HBH-3)

Revision title: HB-3 Supernova Remnant (SNR 132.6+01.5 , HBH-3) w/RGB Stars

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