NGC 4431 is a lenticular galaxy in Virgo
NGC 4431 is a lenticular galaxy in the constellation Virgo . It shines at magnitude 12.9 and spans 1.5′ × 53″. It is faint: a 10-inch or larger telescope, or a camera, and it is highest in the evening sky in May.
Galaxy: a system of billions of stars, gas and dust held together by gravity, far outside the Milky Way. Spiral galaxies have a disk with arms; elliptical galaxies are smooth, round or oval swarms of older stars.
Finding NGC 4431 from Denebola
Denebola
NGC 4431
VIRGO
NGC 4431 lies 9.6° east of Denebola , the magnitude 2.1 star. A fist held at arm's length covers about 10°.
NGC 4431 is highest in the evening in May
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
60°N
JAN at 60°N: -2° high at 9 pm FEB at 60°N: 12° high at 9 pm MAR at 60°N: 26° high at 9 pm APR at 60°N: 38° high at 9 pm MAY at 60°N: 42° high at 9 pm JUN at 60°N: 37° high at 9 pm JUL at 60°N: 25° high at 9 pm AUG at 60°N: 10° high at 9 pm SEP at 60°N: -4° high at 9 pm OCT at 60°N: -14° high at 9 pm NOV at 60°N: -18° high at 9 pm DEC at 60°N: -13° high at 9 pm 50°N
JAN at 50°N: -7° high at 9 pm FEB at 50°N: 11° high at 9 pm MAR at 50°N: 29° high at 9 pm APR at 50°N: 46° high at 9 pm MAY at 50°N: 52° high at 9 pm JUN at 50°N: 44° high at 9 pm JUL at 50°N: 28° high at 9 pm AUG at 50°N: 8° high at 9 pm SEP at 50°N: -10° high at 9 pm OCT at 50°N: -23° high at 9 pm NOV at 50°N: -28° high at 9 pm DEC at 50°N: -22° high at 9 pm 40°N
JAN at 40°N: -12° high at 9 pm FEB at 40°N: 10° high at 9 pm MAR at 40°N: 31° high at 9 pm APR at 40°N: 53° high at 9 pm MAY at 40°N: 62° high at 9 pm JUN at 40°N: 51° high at 9 pm JUL at 40°N: 30° high at 9 pm AUG at 40°N: 7° high at 9 pm SEP at 40°N: -15° high at 9 pm OCT at 40°N: -32° high at 9 pm NOV at 40°N: -38° high at 9 pm DEC at 40°N: -30° high at 9 pm 30°N
JAN at 30°N: -16° high at 9 pm FEB at 30°N: 9° high at 9 pm MAR at 30°N: 33° high at 9 pm APR at 30°N: 58° high at 9 pm MAY at 30°N: 72° high at 9 pm JUN at 30°N: 56° high at 9 pm JUL at 30°N: 31° high at 9 pm AUG at 30°N: 5° high at 9 pm SEP at 30°N: -20° high at 9 pm OCT at 30°N: -40° high at 9 pm NOV at 30°N: -48° high at 9 pm DEC at 30°N: -38° high at 9 pm 20°N
JAN at 20°N: -20° high at 9 pm FEB at 20°N: 7° high at 9 pm MAR at 20°N: 33° high at 9 pm APR at 20°N: 62° high at 9 pm MAY at 20°N: 82° high at 9 pm JUN at 20°N: 59° high at 9 pm JUL at 20°N: 31° high at 9 pm AUG at 20°N: 3° high at 9 pm SEP at 20°N: -25° high at 9 pm OCT at 20°N: -47° high at 9 pm NOV at 20°N: -58° high at 9 pm DEC at 20°N: -45° high at 9 pm 10°N
JAN at 10°N: -24° high at 9 pm FEB at 10°N: 5° high at 9 pm MAR at 10°N: 32° high at 9 pm APR at 10°N: 62° high at 9 pm MAY at 10°N: 88° high at 9 pm JUN at 10°N: 59° high at 9 pm JUL at 10°N: 30° high at 9 pm AUG at 10°N: 1° high at 9 pm SEP at 10°N: -28° high at 9 pm OCT at 10°N: -54° high at 9 pm NOV at 10°N: -68° high at 9 pm DEC at 10°N: -51° high at 9 pm 0°
JAN at 0°: -27° high at 9 pm FEB at 0°: 3° high at 9 pm MAR at 0°: 30° high at 9 pm APR at 0°: 59° high at 9 pm MAY at 0°: 78° high at 9 pm JUN at 0°: 56° high at 9 pm JUL at 0°: 28° high at 9 pm AUG at 0°: -2° high at 9 pm SEP at 0°: -31° high at 9 pm OCT at 0°: -59° high at 9 pm NOV at 0°: -77° high at 9 pm DEC at 0°: -56° high at 9 pm 10°S
JAN at 10°S: -29° high at 9 pm FEB at 10°S: 1° high at 9 pm MAR at 10°S: 27° high at 9 pm APR at 10°S: 54° high at 9 pm MAY at 10°S: 68° high at 9 pm JUN at 10°S: 52° high at 9 pm JUL at 10°S: 25° high at 9 pm AUG at 10°S: -4° high at 9 pm SEP at 10°S: -33° high at 9 pm OCT at 10°S: -62° high at 9 pm NOV at 10°S: -87° high at 9 pm DEC at 10°S: -59° high at 9 pm 20°S
JAN at 20°S: -30° high at 9 pm FEB at 20°S: -1° high at 9 pm MAR at 20°S: 23° high at 9 pm APR at 20°S: 47° high at 9 pm MAY at 20°S: 58° high at 9 pm JUN at 20°S: 45° high at 9 pm JUL at 20°S: 22° high at 9 pm AUG at 20°S: -6° high at 9 pm SEP at 20°S: -34° high at 9 pm OCT at 20°S: -62° high at 9 pm NOV at 20°S: -82° high at 9 pm DEC at 20°S: -58° high at 9 pm 30°S
JAN at 30°S: -30° high at 9 pm FEB at 30°S: -3° high at 9 pm MAR at 30°S: 19° high at 9 pm APR at 30°S: 40° high at 9 pm MAY at 30°S: 48° high at 9 pm JUN at 30°S: 38° high at 9 pm JUL at 30°S: 18° high at 9 pm AUG at 30°S: -8° high at 9 pm SEP at 30°S: -34° high at 9 pm OCT at 30°S: -58° high at 9 pm NOV at 30°S: -72° high at 9 pm DEC at 30°S: -56° high at 9 pm 40°S
JAN at 40°S: -29° high at 9 pm FEB at 40°S: -5° high at 9 pm MAR at 40°S: 14° high at 9 pm APR at 40°S: 31° high at 9 pm MAY at 40°S: 38° high at 9 pm JUN at 40°S: 30° high at 9 pm JUL at 40°S: 13° high at 9 pm AUG at 40°S: -9° high at 9 pm SEP at 40°S: -32° high at 9 pm OCT at 40°S: -53° high at 9 pm NOV at 40°S: -62° high at 9 pm DEC at 40°S: -51° high at 9 pm
below horizon
low
20-40°
40-60°
overhead-ish
The chart gives its height above the horizon at 9 pm through the year, from 60°N to 40°S. It can be seen from the whole northern hemisphere and south to about 78°S, and never sets north of 78°N.
The distance to NGC 4431 is not well measured
No reliable distance has been measured for it yet.
Objects within 6° of NGC 4431
631 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
NGC 4440, early spiral galaxy, 6′ NGC 4407, early spiral galaxy, 23′ NGC 4425, lenticular galaxy, 27′ NGC 4388, barred spiral galaxy, 33′ IC 3408, star, 36′ NGC 4452, lenticular galaxy, 37′ NGC 4476, lenticular galaxy, 37′ NGC 4387, elliptical galaxy, 40′
NGC 4431 catalog data
Field Value
Constellation Virgo Designations NGC 4431, 2MASX J12272735+1217252, MCG +02-32-062, PGC 040852, SDSS J122727.38+121725.0, UGC 07569 Type lenticular galaxy (S0) Right ascension (J2000) 12h 27.5m Declination (J2000) +12° 17′ Magnitude 12.9 (B 13.0) Surface brightness 23.4 mag/arcmin² Apparent size 1.5′ × 53″ Position angle 179° Radial velocity 788 km/s, redshift 0.00263 Best with Large telescope Best month May Catalog page NGC 4001 to 4500
