NGC 1559 | |
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Observation data (J2000.0 epoch) | |
Constellation | Reticulum |
Right ascension | 4h 17m 35.8s [1] |
Declination | −62° 47′ 1″ [1] |
Redshift | 1304 ± 4 km/ s [1] |
Apparent magnitude (V) | 11 [1] |
Characteristics | |
Type | SB(s)cd [1] |
Apparent size (V) | 3.5′ × 2.0′ [1] |
Other designations | |
PGC 14814 [1] |
NGC 1559 is a barred spiral galaxy in the constellation Reticulum. It is also a Seyfert galaxy. Although it was originally thought to be a member of the Dorado Group, [2] subsequent observations have shown that it is in fact not a member of any galaxy group or cluster and does not have any nearby companions. [3] [4] NGC 1559 has massive spiral arms and strong star formation. [3] It contains a small bar which is oriented nearly east-west and spans 40″. [3] Its bar and disc are the source of very strong radio emissions. [3]
Four supernovae have been observed in NGC 1559. Australian amateur astronomer Robert Evans [5] discovered the first three: SN 1984J ( type II, mag. 13.5), [6] SN 1986L (type II, mag. 13.5), [7] and SN 2005df ( Type Ia, mag 12.3). [8] SN 2009ib (type IIP, mag. 14.7) [9] was discovered on 6 August 2009.