IC 4255 is a lenticular galaxy in Hydra
IC 4255 (ESO 509-020) is a lenticular galaxy in the constellation Hydra . It shines at magnitude 13.3 and spans 1.3′ × 54″. 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 IC 4255 from Naga
Naga
IC 4255
HYDRA
IC 4255 lies 4.7° southeast of Naga , the magnitude 3.0 star. Three fingers held at arm's length cover about 5°.
IC 4255 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: -44° high at 9 pm FEB at 60°N: -29° high at 9 pm MAR at 60°N: -16° high at 9 pm APR at 60°N: -4° high at 9 pm MAY at 60°N: 2° high at 9 pm JUN at 60°N: 2° high at 9 pm JUL at 60°N: -5° high at 9 pm AUG at 60°N: -17° high at 9 pm SEP at 60°N: -32° high at 9 pm OCT at 60°N: -46° high at 9 pm NOV at 60°N: -56° high at 9 pm DEC at 60°N: -55° high at 9 pm 50°N
JAN at 50°N: -47° high at 9 pm FEB at 50°N: -28° high at 9 pm MAR at 50°N: -11° high at 9 pm APR at 50°N: 3° high at 9 pm MAY at 50°N: 12° high at 9 pm JUN at 50°N: 11° high at 9 pm JUL at 50°N: 3° high at 9 pm AUG at 50°N: -13° high at 9 pm SEP at 50°N: -31° high at 9 pm OCT at 50°N: -50° high at 9 pm NOV at 50°N: -65° high at 9 pm DEC at 50°N: -64° high at 9 pm 40°N
JAN at 40°N: -49° high at 9 pm FEB at 40°N: -26° high at 9 pm MAR at 40°N: -6° high at 9 pm APR at 40°N: 11° high at 9 pm MAY at 40°N: 21° high at 9 pm JUN at 40°N: 21° high at 9 pm JUL at 40°N: 10° high at 9 pm AUG at 40°N: -8° high at 9 pm SEP at 40°N: -30° high at 9 pm OCT at 40°N: -52° high at 9 pm NOV at 40°N: -74° high at 9 pm DEC at 40°N: -71° high at 9 pm 30°N
JAN at 30°N: -48° high at 9 pm FEB at 30°N: -23° high at 9 pm MAR at 30°N: -1° high at 9 pm APR at 30°N: 19° high at 9 pm MAY at 30°N: 31° high at 9 pm JUN at 30°N: 31° high at 9 pm JUL at 30°N: 18° high at 9 pm AUG at 30°N: -3° high at 9 pm SEP at 30°N: -27° high at 9 pm OCT at 30°N: -52° high at 9 pm NOV at 30°N: -78° high at 9 pm DEC at 30°N: -75° high at 9 pm 20°N
JAN at 20°N: -46° high at 9 pm FEB at 20°N: -19° high at 9 pm MAR at 20°N: 4° high at 9 pm APR at 20°N: 26° high at 9 pm MAY at 20°N: 41° high at 9 pm JUN at 20°N: 40° high at 9 pm JUL at 20°N: 25° high at 9 pm AUG at 20°N: 2° high at 9 pm SEP at 20°N: -24° high at 9 pm OCT at 20°N: -50° high at 9 pm NOV at 20°N: -76° high at 9 pm DEC at 20°N: -73° high at 9 pm 10°N
JAN at 10°N: -42° high at 9 pm FEB at 10°N: -15° high at 9 pm MAR at 10°N: 9° high at 9 pm APR at 10°N: 34° high at 9 pm MAY at 10°N: 50° high at 9 pm JUN at 10°N: 49° high at 9 pm JUL at 10°N: 32° high at 9 pm AUG at 10°N: 7° high at 9 pm SEP at 10°N: -20° high at 9 pm OCT at 10°N: -46° high at 9 pm NOV at 10°N: -69° high at 9 pm DEC at 10°N: -67° high at 9 pm 0°
JAN at 0°: -37° high at 9 pm FEB at 0°: -11° high at 9 pm MAR at 0°: 14° high at 9 pm APR at 0°: 40° high at 9 pm MAY at 0°: 59° high at 9 pm JUN at 0°: 58° high at 9 pm JUL at 0°: 38° high at 9 pm AUG at 0°: 12° high at 9 pm SEP at 0°: -15° high at 9 pm OCT at 0°: -40° high at 9 pm NOV at 0°: -60° high at 9 pm DEC at 0°: -58° high at 9 pm 10°S
JAN at 10°S: -31° high at 9 pm FEB at 10°S: -6° high at 9 pm MAR at 10°S: 18° high at 9 pm APR at 10°S: 45° high at 9 pm MAY at 10°S: 68° high at 9 pm JUN at 10°S: 67° high at 9 pm JUL at 10°S: 43° high at 9 pm AUG at 10°S: 16° high at 9 pm SEP at 10°S: -10° high at 9 pm OCT at 10°S: -34° high at 9 pm NOV at 10°S: -51° high at 9 pm DEC at 10°S: -49° high at 9 pm 20°S
JAN at 20°S: -24° 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: 49° high at 9 pm MAY at 20°S: 75° high at 9 pm JUN at 20°S: 73° high at 9 pm JUL at 20°S: 47° high at 9 pm AUG at 20°S: 21° high at 9 pm SEP at 20°S: -5° high at 9 pm OCT at 20°S: -27° high at 9 pm NOV at 20°S: -41° high at 9 pm DEC at 20°S: -40° high at 9 pm 30°S
JAN at 30°S: -17° high at 9 pm FEB at 30°S: 4° high at 9 pm MAR at 30°S: 26° high at 9 pm APR at 30°S: 52° high at 9 pm MAY at 30°S: 77° high at 9 pm JUN at 30°S: 75° high at 9 pm JUL at 30°S: 50° high at 9 pm AUG at 30°S: 24° high at 9 pm SEP at 30°S: 0° high at 9 pm OCT at 30°S: -19° high at 9 pm NOV at 30°S: -31° high at 9 pm DEC at 30°S: -30° high at 9 pm 40°S
JAN at 40°S: -9° high at 9 pm FEB at 40°S: 9° high at 9 pm MAR at 40°S: 29° high at 9 pm APR at 40°S: 52° high at 9 pm MAY at 40°S: 73° high at 9 pm JUN at 40°S: 71° high at 9 pm JUL at 40°S: 50° high at 9 pm AUG at 40°S: 27° high at 9 pm SEP at 40°S: 5° high at 9 pm OCT at 40°S: -12° high at 9 pm NOV at 40°S: -22° high at 9 pm DEC at 40°S: -21° 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 southern hemisphere and north to about 63°N, and never sets south of 63°S.
The distance to IC 4255 is not well measured
No reliable distance has been measured for it yet.
Objects within 6° of IC 4255
96 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
NGC 5182, spiral galaxy, 60′ NGC 5101, lenticular galaxy, 1.4° NGC 5078, early spiral galaxy, 1.8° NGC 5153, elliptical galaxy, 2.3° NGC 5152, barred spiral galaxy, 2.3° NGC 5061, elliptical galaxy, 2.3° NGC 5135, early spiral galaxy, 2.5° IC 4310, lenticular galaxy, 2.9°
IC 4255 catalog data
Field Value
Constellation Hydra Designations IC 4255, ESO 509-020, 2MASX J13280012-2721154, ESO-LV 509-0200, MCG -04-32-020, PGC 047209 Type lenticular galaxy (E-S0) Right ascension (J2000) 13h 28.0m Declination (J2000) -27° 21′ Magnitude 13.3 (B 14.0) Surface brightness 23.7 mag/arcmin² Apparent size 1.3′ × 54″ Position angle 45° Radial velocity 10,036 km/s, redshift 0.03406 Best with Large telescope Best month May Catalog page IC 4001 to 4500
