Targets / Sh2-157

Astrophotoguru · Lobster Claw Nebula

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Sh2-157

Sh2-157 — Lobster Claw Nebula

Emission Nebula
· Cassiopeia
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Target information

Object type
Emission Nebula
Constellation
Cassiopeia
Right ascension
23h 16m 04s
Declination
+60° 02′ 01″
Magnitude
Not recorded
Angular size
90′
Surface brightness
Not recorded
Difficulty
Advanced
Best months
September, October, November, December, January
Catalog IDs
Sh2-157;LBN 537

About this target

Angular size from the Sharpless (Sh 2) catalogue maximum H II region diameter (90 arcmin). Catalogue lists a single diameter, so width and height are set equal.

Recommended telescopes

William Optics
448mm f/4.9 · 91mm aperture
Frames 50% of APS-C FOV
Unistellar
450mm f/3.9 · 114mm aperture
Frames 50% of APS-C FOV
Unistellar
450mm f/3.9 · 114mm aperture
Frames 50% of APS-C FOV
Takahashi
450mm f/5.3 · 85mm aperture
Frames 50% of APS-C FOV
William Optics
430mm f/5.9 · 73mm aperture
Frames 48% of APS-C FOV
Takahashi
430mm f/3.3 · 130mm aperture
Frames 48% of APS-C FOV

Recommended cameras

QHYCCD
3.76µm pixels · cooled
Player One
4.63µm pixels · cooled
ZWO
5.94µm pixels · cooled
OGMA
3.76µm pixels · cooled
OGMA
3.76µm pixels · cooled
ToupTek
2.90µm pixels · cooled

Example framing

FOV 4.60° × 3.07°
Scale 2.73″/px
Target fills 49% of frame
Preview in planner
FOV 2.43° × 1.66°
Scale 2.12″/px
Target fills 91% of frame
Preview in planner
FOV 2.43° × 1.66°
Scale 2.12″/px
Target fills 91% of frame
Preview in planner

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