Targets / Messier M101

Astrophotoguru™ · Pinwheel Galaxy

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Messier M101

Pinwheel Galaxy

Galaxy
Ursa Major
Moderate

Large face-on spiral galaxy; low surface brightness rewards dark skies.

Angular size
28.8′ × 26.9′
Magnitude
7.9
Best months
Mar-Jun
Constellation
Ursa Major
Catalog IDs
M101;NGC 5457
Common aliases
Pinwheel
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Recommended telescopes

Celestron
Celestron C6 SCT
1500mm f/10.0 · 150mm aperture
Frames 53% of APS-C FOV
Astro-Tech
Astro-Tech AT8RC
1624mm f/8.0 · 203mm aperture
Frames 58% of APS-C FOV
Stellarvue
Stellarvue SVX152T
1200mm f/7.9 · 152mm aperture
Frames 43% of APS-C FOV
Explore Scientific
Explore Scientific ED152 FCD-100
1140mm f/7.5 · 152mm aperture
Frames 41% of APS-C FOV
Takahashi
Takahashi TOA-150B
1100mm f/7.3 · 150mm aperture
Frames 39% of APS-C FOV
William Optics
William Optics FLT 156
1085mm f/7.0 · 156mm aperture
Frames 39% of APS-C FOV

Recommended cameras

ZWO
ZWO ASI2600MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI2600MM Pro
3.76µm pixels · cooled
ZWO
ZWO ASI6200MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI6200MM Pro
3.76µm pixels · cooled
ZWO
ZWO ASI533MC Pro
3.76µm pixels · cooled
ZWO
ZWO ASI533MM Pro
3.76µm pixels · cooled

Example framing

Celestron C6 SCT + ZWO ASI533MC Pro
FOV 0.43° × 0.43°
Scale 0.52″/px
Target fills 111% of frame
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Astro-Tech AT8RC + ZWO ASI2600MC Pro
FOV 0.83° × 0.55°
Scale 0.48″/px
Target fills 87% of frame
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Stellarvue SVX152T + ZWO ASI6200MC Pro
FOV 1.72° × 1.15°
Scale 0.65″/px
Target fills 42% of frame
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Related galaxys

NGC NGC 5457
Pinwheel Galaxy NGC 5457
NGC NGC 253
Sculptor Galaxy
Messier M81
Bode's Galaxy
NGC NGC 5128
Centaurus A
NGC NGC 55
Sculptor Filament
Messier M110
Andromeda Satellite M110
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