NGC 4559
Template:Short description Template:Sky Template:Infobox Galaxy
NGC 4559 (also known as Caldwell 36) is an intermediate spiral galaxy with a weak inner ring structure in the constellation Coma Berenices. Its velocity with respect to the cosmic microwave background is Script error: No such module "val"., which corresponds to a Hubble distance of Script error: No such module "convert"..Template:R However, 26 non-redshift measurements give a much closer distance of Script error: No such module "convert"..[1] It was discovered by German-British astronomer William Herschel on 11 April 1785.[2][3]
NGC 4559 is a member of the Coma I Group.[4][5]
Supernova
One supernova has been recorded in NGC 4559: SN 1941A (Type II-L, mag. 13.2)[6] was discovered by Rebecca Jones on 24 February 1941, and after checking previous photographs of the galaxy, it was determined that the supernova was visible starting 5 February 1941.[7]
Luminous Blue Variable
NGC 4559 is home to the luminous blue variable ATScript error: No such module "String".2016blu (also known as PSNScript error: No such module "String".J12355230+2755559, or as NGCScript error: No such module "String".4559OT). It was discovered by the Lick Observatory Supernova Search (LOSS) on 11 January 2012.[8][9] It experiences repeated supernova-like outbursts: first when discovered, then again in 2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2024, and 2025.[10][11]
See also
- Messier 99 – a similar spiral galaxy
- List of NGC objects (4001–5000)
Gallery
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Hubble Space Telescope showing the inner structure
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Hubble image of IC 3550, located in NGC 4559.
References
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External links
Template:Caldwell catalogue Template:Ngc50 Template:Coma Berenices