NGC 4423 is a late spiral galaxy in Virgo, 51 million light-years away
NGC 4423 is a late spiral galaxy in the constellation Virgo , 51 million light-years away. It shines at magnitude 13.0 and spans 2.1′ × 25″ of sky, about 30,200 light-years across. 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 4423 from Porrima
Porrima
NGC 4423
VIRGO
NGC 4423 lies 8.2° northwest of Porrima , the magnitude 2.7 star. A fist held at arm's length covers about 10°.
NGC 4423 is highest in the evening in May
JAN
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60°N
JAN at 60°N: -8° high at 9 pm FEB at 60°N: 7° high at 9 pm MAR at 60°N: 20° high at 9 pm APR at 60°N: 32° high at 9 pm MAY at 60°N: 36° high at 9 pm JUN at 60°N: 31° high at 9 pm JUL at 60°N: 19° high at 9 pm AUG at 60°N: 4° high at 9 pm SEP at 60°N: -10° high at 9 pm OCT at 60°N: -20° high at 9 pm NOV at 60°N: -24° high at 9 pm DEC at 60°N: -19° high at 9 pm 50°N
JAN at 50°N: -12° high at 9 pm FEB at 50°N: 7° high at 9 pm MAR at 50°N: 24° high at 9 pm APR at 50°N: 40° high at 9 pm MAY at 50°N: 46° high at 9 pm JUN at 50°N: 39° high at 9 pm JUL at 50°N: 23° high at 9 pm AUG at 50°N: 3° high at 9 pm SEP at 50°N: -15° high at 9 pm OCT at 50°N: -29° high at 9 pm NOV at 50°N: -34° high at 9 pm DEC at 50°N: -28° high at 9 pm 40°N
JAN at 40°N: -16° high at 9 pm FEB at 40°N: 6° high at 9 pm MAR at 40°N: 27° high at 9 pm APR at 40°N: 47° high at 9 pm MAY at 40°N: 56° high at 9 pm JUN at 40°N: 46° high at 9 pm JUL at 40°N: 26° high at 9 pm AUG at 40°N: 2° high at 9 pm SEP at 40°N: -20° high at 9 pm OCT at 40°N: -37° high at 9 pm NOV at 40°N: -44° high at 9 pm DEC at 40°N: -35° high at 9 pm 30°N
JAN at 30°N: -20° high at 9 pm FEB at 30°N: 6° high at 9 pm MAR at 30°N: 30° high at 9 pm APR at 30°N: 54° high at 9 pm MAY at 30°N: 66° high at 9 pm JUN at 30°N: 52° high at 9 pm JUL at 30°N: 28° high at 9 pm AUG at 30°N: 1° high at 9 pm SEP at 30°N: -24° high at 9 pm OCT at 30°N: -45° high at 9 pm NOV at 30°N: -54° high at 9 pm DEC at 30°N: -43° high at 9 pm 20°N
JAN at 20°N: -23° high at 9 pm FEB at 20°N: 5° high at 9 pm MAR at 20°N: 31° high at 9 pm APR at 20°N: 59° high at 9 pm MAY at 20°N: 76° high at 9 pm JUN at 20°N: 56° high at 9 pm JUL at 20°N: 29° high at 9 pm AUG at 20°N: 0° high at 9 pm SEP at 20°N: -28° high at 9 pm OCT at 20°N: -52° high at 9 pm NOV at 20°N: -64° high at 9 pm DEC at 20°N: -49° high at 9 pm 10°N
JAN at 10°N: -25° high at 9 pm FEB at 10°N: 4° high at 9 pm MAR at 10°N: 31° high at 9 pm APR at 10°N: 61° high at 9 pm MAY at 10°N: 86° high at 9 pm JUN at 10°N: 58° high at 9 pm JUL at 10°N: 29° high at 9 pm AUG at 10°N: -1° high at 9 pm SEP at 10°N: -30° high at 9 pm OCT at 10°N: -58° high at 9 pm NOV at 10°N: -74° high at 9 pm DEC at 10°N: -54° high at 9 pm 0°
JAN at 0°: -27° high at 9 pm FEB at 0°: 3° high at 9 pm MAR at 0°: 31° high at 9 pm APR at 0°: 61° high at 9 pm MAY at 0°: 84° high at 9 pm JUN at 0°: 58° high at 9 pm JUL at 0°: 29° high at 9 pm AUG at 0°: -2° high at 9 pm SEP at 0°: -32° high at 9 pm OCT at 0°: -61° high at 9 pm NOV at 0°: -84° high at 9 pm DEC at 0°: -58° high at 9 pm 10°S
JAN at 10°S: -28° high at 9 pm FEB at 10°S: 2° high at 9 pm MAR at 10°S: 29° high at 9 pm APR at 10°S: 57° high at 9 pm MAY at 10°S: 74° high at 9 pm JUN at 10°S: 55° high at 9 pm JUL at 10°S: 27° high at 9 pm AUG at 10°S: -3° 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: -85° high at 9 pm DEC at 10°S: -58° high at 9 pm 20°S
JAN at 20°S: -28° high at 9 pm FEB at 20°S: 1° high at 9 pm MAR at 20°S: 26° high at 9 pm APR at 20°S: 52° high at 9 pm MAY at 20°S: 64° high at 9 pm JUN at 20°S: 50° high at 9 pm JUL at 20°S: 25° high at 9 pm AUG at 20°S: -4° high at 9 pm SEP at 20°S: -32° high at 9 pm OCT at 20°S: -59° high at 9 pm NOV at 20°S: -76° high at 9 pm DEC at 20°S: -56° high at 9 pm 30°S
JAN at 30°S: -26° high at 9 pm FEB at 30°S: -0° high at 9 pm MAR at 30°S: 23° high at 9 pm APR at 30°S: 45° high at 9 pm MAY at 30°S: 54° high at 9 pm JUN at 30°S: 43° high at 9 pm JUL at 30°S: 21° high at 9 pm AUG at 30°S: -4° high at 9 pm SEP at 30°S: -31° high at 9 pm OCT at 30°S: -54° high at 9 pm NOV at 30°S: -66° high at 9 pm DEC at 30°S: -51° high at 9 pm 40°S
JAN at 40°S: -24° high at 9 pm FEB at 40°S: -1° high at 9 pm MAR at 40°S: 19° high at 9 pm APR at 40°S: 37° high at 9 pm MAY at 40°S: 44° high at 9 pm JUN at 40°S: 36° high at 9 pm JUL at 40°S: 18° high at 9 pm AUG at 40°S: -5° high at 9 pm SEP at 40°S: -28° high at 9 pm OCT at 40°S: -48° high at 9 pm NOV at 40°S: -56° high at 9 pm DEC at 40°S: -45° 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 84°S.
NGC 4423 is 51 million light-years away
The light seen from NGC 4423 tonight left it about 51 million years ago, long before modern humans existed. Distance source: Cosmicflows-4 (Tully et al. 2023).
Objects within 6° of NGC 4423
316 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
NGC 4430, spiral galaxy, 23′ NGC 4339, elliptical galaxy, 55′ NGC 4378, early spiral galaxy, 1.1° NGC 4324, lenticular galaxy, 1.2° NGC 4343, spiral galaxy, 1.4° NGC 4342, lenticular galaxy, 1.5° NGC 4365, elliptical galaxy, 1.6° NGC 4281, lenticular galaxy, 1.8°
NGC 4423 catalog data
Field Value
Constellation Virgo Designations NGC 4423, 2MASX J12270897+0552488, IRAS 12246+0609, MCG +01-32-065, PGC 040801, SDSS J122708.99+055248.2, UGC 07556 Type late spiral galaxy (Sd) Right ascension (J2000) 12h 27.1m Declination (J2000) +05° 53′ Magnitude 13.0 Surface brightness 22.7 mag/arcmin² Apparent size 2.1′ × 25″ Position angle 20° True size 30,200 light-years Distance 51 million light-years (Cosmicflows-4 (Tully et al. 2023)) Radial velocity 1,116 km/s, redshift 0.00373 Best with Large telescope Best month May Catalog page NGC 4001 to 4500
