When to photograph NGC 7497
NGC 7497 is a galaxy in Pegasus, 3′ x 1′ across at magnitude 12.3.
When to photograph it
From 45° N the best months are September and October, with up to 8.0 hours of astronomical darkness above 30° in September. It reaches 63° at its highest.
From 35° S the best months are July to October, with up to 3.8 hours of astronomical darkness above 30° in July. It reaches 37° at its highest.
Framing
At 3′ x 1′ it is small. Even 4000 mm of focal length leaves it filling less than a third of an APS-C frame, so it suits long focal lengths, small pixels and good seeing.
Filters and the moon
Galaxies are broadband targets. Filters cannot separate their light from light pollution, so dark skies and moon-free nights matter most. The dark sky calendar shows which nights this month are moon-free where you are.
Plan it for tonight
Dates and times depend on your exact location. The imaging planner shows NGC 7497's altitude through tonight, its transit time and its distance from the moon. For sub length, use the exposure calculator.
Nearby targets
Gear that suits NGC 7497
NGC 7497 is only 2.8′ across, so it stays small in any amateur telescope. The longest focal length gives it the most pixels.
- Celestron C8 OTA 2032 mm f/10: fills 11% of an APS-C frame's short side View at High Point Scientific
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