NGC 4455 is a barred spiral galaxy in Coma Berenices, 21 million light-years away
NGC 4455 (PGC 041066) is a barred spiral galaxy in the constellation Coma Berenices , 21 million light-years away. It shines at magnitude 13.0 and spans 1.6′ × 34″ of sky, about 9,880 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 4455 from Denebola
Denebola
NGC 4455
COMA BERENICES
NGC 4455 lies 12.5° northeast of Denebola , the magnitude 2.1 star. A fist held at arm's length covers about 10°.
NGC 4455 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: 7° high at 9 pm FEB at 60°N: 21° high at 9 pm MAR at 60°N: 35° high at 9 pm APR at 60°N: 48° high at 9 pm MAY at 60°N: 53° high at 9 pm JUN at 60°N: 47° high at 9 pm JUL at 60°N: 34° high at 9 pm AUG at 60°N: 19° high at 9 pm SEP at 60°N: 5° high at 9 pm OCT at 60°N: -4° high at 9 pm NOV at 60°N: -7° high at 9 pm DEC at 60°N: -3° high at 9 pm 50°N
JAN at 50°N: 1° high at 9 pm FEB at 50°N: 19° high at 9 pm MAR at 50°N: 37° high at 9 pm APR at 50°N: 55° high at 9 pm MAY at 50°N: 63° high at 9 pm JUN at 50°N: 53° high at 9 pm JUL at 50°N: 36° high at 9 pm AUG at 50°N: 16° high at 9 pm SEP at 50°N: -1° high at 9 pm OCT at 50°N: -13° high at 9 pm NOV at 50°N: -17° high at 9 pm DEC at 50°N: -12° high at 9 pm 40°N
JAN at 40°N: -4° high at 9 pm FEB at 40°N: 17° high at 9 pm MAR at 40°N: 37° high at 9 pm APR at 40°N: 60° high at 9 pm MAY at 40°N: 73° high at 9 pm JUN at 40°N: 59° high at 9 pm JUL at 40°N: 36° high at 9 pm AUG at 40°N: 13° high at 9 pm SEP at 40°N: -7° high at 9 pm OCT at 40°N: -22° high at 9 pm NOV at 40°N: -27° high at 9 pm DEC at 40°N: -21° high at 9 pm 30°N
JAN at 30°N: -10° high at 9 pm FEB at 30°N: 14° high at 9 pm MAR at 30°N: 37° high at 9 pm APR at 30°N: 63° high at 9 pm MAY at 30°N: 83° high at 9 pm JUN at 30°N: 61° high at 9 pm JUL at 30°N: 36° high at 9 pm AUG at 30°N: 10° high at 9 pm SEP at 30°N: -13° high at 9 pm OCT at 30°N: -30° high at 9 pm NOV at 30°N: -37° high at 9 pm DEC at 30°N: -29° high at 9 pm 20°N
JAN at 20°N: -16° high at 9 pm FEB at 20°N: 10° high at 9 pm MAR at 20°N: 35° high at 9 pm APR at 20°N: 63° high at 9 pm MAY at 20°N: 87° high at 9 pm JUN at 20°N: 61° high at 9 pm JUL at 20°N: 34° high at 9 pm AUG at 20°N: 6° high at 9 pm SEP at 20°N: -19° high at 9 pm OCT at 20°N: -39° high at 9 pm NOV at 20°N: -47° high at 9 pm DEC at 20°N: -37° high at 9 pm 10°N
JAN at 10°N: -21° high at 9 pm FEB at 10°N: 7° high at 9 pm MAR at 10°N: 32° high at 9 pm APR at 10°N: 60° high at 9 pm MAY at 10°N: 77° high at 9 pm JUN at 10°N: 58° high at 9 pm JUL at 10°N: 31° high at 9 pm AUG at 10°N: 3° high at 9 pm SEP at 10°N: -24° high at 9 pm OCT at 10°N: -47° high at 9 pm NOV at 10°N: -57° high at 9 pm DEC at 10°N: -45° high at 9 pm 0°
JAN at 0°: -25° high at 9 pm FEB at 0°: 3° high at 9 pm MAR at 0°: 28° high at 9 pm APR at 0°: 54° high at 9 pm MAY at 0°: 67° high at 9 pm JUN at 0°: 52° high at 9 pm JUL at 0°: 27° high at 9 pm AUG at 0°: -1° high at 9 pm SEP at 0°: -29° high at 9 pm OCT at 0°: -54° high at 9 pm NOV at 0°: -67° high at 9 pm DEC at 0°: -52° 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: 23° high at 9 pm APR at 10°S: 47° high at 9 pm MAY at 10°S: 57° high at 9 pm JUN at 10°S: 45° high at 9 pm JUL at 10°S: 22° high at 9 pm AUG at 10°S: -5° high at 9 pm SEP at 10°S: -33° high at 9 pm OCT at 10°S: -60° high at 9 pm NOV at 10°S: -77° high at 9 pm DEC at 10°S: -57° high at 9 pm 20°S
JAN at 20°S: -32° high at 9 pm FEB at 20°S: -5° high at 9 pm MAR at 20°S: 18° high at 9 pm APR at 20°S: 39° high at 9 pm MAY at 20°S: 47° high at 9 pm JUN at 20°S: 37° high at 9 pm JUL at 20°S: 17° high at 9 pm AUG at 20°S: -9° high at 9 pm SEP at 20°S: -36° high at 9 pm OCT at 20°S: -63° high at 9 pm NOV at 20°S: -87° high at 9 pm DEC at 20°S: -61° high at 9 pm 30°S
JAN at 30°S: -34° high at 9 pm FEB at 30°S: -9° high at 9 pm MAR at 30°S: 12° high at 9 pm APR at 30°S: 30° high at 9 pm MAY at 30°S: 37° high at 9 pm JUN at 30°S: 29° high at 9 pm JUL at 30°S: 11° high at 9 pm AUG at 30°S: -12° high at 9 pm SEP at 30°S: -38° high at 9 pm OCT at 30°S: -64° high at 9 pm NOV at 30°S: -83° high at 9 pm DEC at 30°S: -61° high at 9 pm 40°S
JAN at 40°S: -35° high at 9 pm FEB at 40°S: -12° high at 9 pm MAR at 40°S: 6° high at 9 pm APR at 40°S: 22° high at 9 pm MAY at 40°S: 27° high at 9 pm JUN at 40°S: 21° high at 9 pm JUL at 40°S: 5° high at 9 pm AUG at 40°S: -15° high at 9 pm SEP at 40°S: -38° high at 9 pm OCT at 40°S: -60° high at 9 pm NOV at 40°S: -73° high at 9 pm DEC at 40°S: -58° 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 67°S, and never sets north of 67°N.
NGC 4455 is 21 million light-years away
The light seen from NGC 4455 tonight left it about 21 million years ago, long before modern humans existed. Distance source: Cosmicflows-4 (Tully et al. 2023).
Objects within 6° of NGC 4455
410 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
NGC 4494, elliptical galaxy, 3.0° NGC 4213, elliptical galaxy, 3.2° NGC 4565 Needle Galaxy, spiral galaxy, 3.6° NGC 4204, barred spiral galaxy, 3.8° NGC 4162, spiral galaxy, 4.1° NGC 4394, barred spiral galaxy, 4.7° M85 Messier 85, lenticular galaxy, 4.7° NGC 4293, lenticular galaxy, 4.8°
NGC 4455 catalog data
Field Value
Constellation Coma Berenices Designations NGC 4455, PGC 041066, MCG +04-30-001, SDSS J122844.11+224913.5, SDSS J122844.11+224913.6, UGC 07603 Type barred spiral galaxy (SBcd) Right ascension (J2000) 12h 28.7m Declination (J2000) +22° 49′ Magnitude 13.0 Surface brightness 21.9 mag/arcmin² Apparent size 1.6′ × 34″ Position angle 16° True size 9,880 light-years Distance 21 million light-years (Cosmicflows-4 (Tully et al. 2023)) Radial velocity 596 km/s, redshift 0.00199 Best with Large telescope Best month May Catalog page NGC 4001 to 4500
