NGC 2997 in the Sea of Hydrogen

by Cankun Wang

Objects in field: NGC 2997, ESO 434-40, MQ J094500.52-310617.8, MQ J094548.90-312614.0, MQ J094549.90-310614.2, MQ J094553.91-311308.0, MQ J094556.36-310410.1, MQ J094608.08-310605.2, MQ J094617.32-310814.4, MQ J094647.72-310417.7, MQ J094655.07-304738.2, MQ J094716.58-304529.5, MQ J094718.92-310130.6, MQ J094750.96-310423.4, TYC7167-1024-1, TYC7167-1198-1, TYC7167-1201-1, TYC7167-128-1, TYC7167-36-1, TYC7167-48-1, TYC7167-541-1, TYC7167-550-1, TYC7167-806-1, TYC7167-856-1, TYC7168-1382-1, TYC7168-1549-1, TYC7168-1681-1, TYC7168-1687-1, TYC7168-1991-1, TYC7168-2005-1, TYC7168-2019-1, TYC7168-2023-1, TYC7168-2032-1, TYC7168-860-1, TYC7168-925-1, TYC7168-971-1, TYC7168-988-1, WISEA J094351.96-304428.0, WISEA J094352.28-310008.0, WISEA J094401.70-313731.1, WISEA J094404.75-311546.8, WISEA J094444.49-305553.9, WISEA J094453.86-312310.0, WISEA J094529.05-305729.4, WISEA J094540.92-305533.4, WISEA J094555.14-305114.0, WISEA J094647.83-311749.5, WISEA J094647.96-311442.3, WISEA J094650.53-311537.7, WISEA J094720.77-311418.7, WISEA J094756.55-311052.0

Equipment: ASA 500N, FLI PL16803

Integration: 10h

NGC 2997 is a large weakly-barred spiral galaxy in the constellation Antlia, approximately 30 to 55 million light-years from Earth, discovered by William Herschel in 1793. Classified as an SAB(rs)c grand-design spiral galaxy, it has two well-extended prominent spiral arms filled with active star-forming regions, along with a weak central bar and surrounding ring of ionized gas. It is the largest…