File:NGC1672_-_Iotw2205a.jpg · Wikimedia Commons · See Wikimedia Commons
Q487228
Sign in to savebarred spiral galaxy in the constellation Dorado
Key facts
- Constellation
- Dorado
- Right ascension
- 04 45 42.5022
- Declination
- −59 ° 14 ′ 50.162 ″
- Heliocentric radial velocity
- 1,331 ± 3 km/s
- Distance
- 51.7 ± 3.0 Mly (15.86 ± 0.92 Mpc )
- Type
- (R')SB(r)bc
- Size
- ~100,800 ly (30.91 kpc ) (estimated)
- Apparent size v
- 6.6′ × 5.5′
via Wikipedia infobox
~3 min read
Encyclopedic overview
NGC 1672 is a barred spiral galaxy located in the constellation Dorado. It was discovered by Scottish astronomer James Dunlop on 5 November 1826. It was originally unclear whether it was a member of the Dorado Group, with some sources finding it to be a member and other sources rejecting its membership. However, recent tip of the red-giant branch (TRGB) measurements indicate that NGC 1672 is located at the same distance as other members, suggesting it is indeed a member of the Dorado Group.
NGC 1672 has a large bar which is estimated to measure around 20 kpc. It has very strong radio emissions emanating from its nucleus, bar, and the inner portion of the spiral arm region. The nucleus is Seyfert type II and is engulfed by a starburst region. The strongest polarized emissions come from the northeastern region which is upstream from its dust lanes. Magnetic field lines are at large angles with respect to the bar and turn smoothly to the center.
Excerpted from Wikipedia’s “Q487228” article, available under the CC BY-SA 4.0 licence.