LEDA 896325
Giant spiral-hosted radio galaxy
From Wikipedia, the free encyclopedia
LEDA 896325 also known as J1350-1634, is a spiral galaxy, class I seyfert galaxy, and a BL Lac object located in the constellation of Virgo.[1] The galaxy is approximately 1.42 billion light years (436 megaparsecs) away and has an apparent B magnitude of 17.13.[1][2] It was discovered in 2003 by a HyperLEDA survey of 950,000 galaxies.[3]
| LEDA 896325 | |
|---|---|
DESI Legacy DR10 image of LEDA 896325 | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 13h 50m 36.14s |
| Declination | -16° 34' 49.51" |
| Redshift | 0.097697 |
| Heliocentric radial velocity | 25142 |
| Distance | 1.423 bly (436.19 mpc) |
| Apparent magnitude (B) | 17.13 |
| Characteristics | |
| Type | S |
| Size | 308,600 ly (94,610 pc) |
| Other designations | |
| J1350-1634, NVSS J135036-163449, 2MASX J13503614-1634494 | |
Physical properties
LEDA 896325 is a very large spiral galaxy that is believed to be a field galaxy and is not associated with any known galaxy clusters.[1][4] The galaxy is 309,000 light years (94,610 parsecs) across based on a distance of 1.42 billion light years away and an angular diameter of 44.3 arcsecs.[2]
In the galactic center of LEDA 896325 is a active galactic nucleus (AGN), and it is also a quasar.[1] In the active galactic nucleus it contains a central black hole with an estimated mass of 240 million M☉, which ejects large amounts of gas forming its large radio emissions.[4]
In 2025, it was discovered by RACS and GLEAM that LEDA 896325 was the host of ~2 megaparsec radio lobes.[4] The radio lobes are considered as Fanaroff-Riley class II, they are edge-brightened and are far more luminous than their counterpart, it is also classified as a spiral DRAGN.[4] It is also predicted to have episodic jet activity similar to J2345-0449.[4] The exact dimensions of the radio lobes are 2.24 megaparsecs or roughly 7,310,000 light years across based on an angular diameter of 22 arcmin, making it the second largest spiral-hosted radio galaxy discovered only behind NGC 6185.[4]
See also
- NGC 6185, similar sized spiral radio galaxy.
- J2345-0449, another large spiral-hosted radio galaxy with episodic jet activity.
- List of spiral DRAGNs, includes LEDA 896325.
