IC 4420 is a barred spiral galaxy in Bootes, 183 million light-years away
IC 4420 is a barred spiral galaxy in the constellation Bootes , 183 million light-years away. It shines at magnitude 15.0 and spans 40″ × 18″ of sky, about 35,600 light-years across. It is faint: a 10-inch or larger telescope, or a camera, and it is highest in the evening sky in June.
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 4420 from Arcturus
Arcturus
IC 4420
BOöTES
IC 4420 lies 6.6° north of Arcturus , the magnitude -0.1 star. Three fingers held at arm's length cover about 5°.
IC 4420 is highest in the evening in June
JAN
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60°N
JAN at 60°N: -0° high at 9 pm FEB at 60°N: 10° high at 9 pm MAR at 60°N: 22° high at 9 pm APR at 60°N: 38° high at 9 pm MAY at 60°N: 50° high at 9 pm JUN at 60°N: 55° high at 9 pm JUL at 60°N: 49° high at 9 pm AUG at 60°N: 36° high at 9 pm SEP at 60°N: 20° high at 9 pm OCT at 60°N: 7° high at 9 pm NOV at 60°N: -2° high at 9 pm DEC at 60°N: -5° high at 9 pm 50°N
JAN at 50°N: -9° high at 9 pm FEB at 50°N: 4° high at 9 pm MAR at 50°N: 20° high at 9 pm APR at 50°N: 39° high at 9 pm MAY at 50°N: 57° high at 9 pm JUN at 50°N: 65° high at 9 pm JUL at 50°N: 55° high at 9 pm AUG at 50°N: 37° high at 9 pm SEP at 50°N: 18° high at 9 pm OCT at 50°N: 1° high at 9 pm NOV at 50°N: -11° high at 9 pm DEC at 50°N: -15° high at 9 pm 40°N
JAN at 40°N: -18° high at 9 pm FEB at 40°N: -2° high at 9 pm MAR at 40°N: 17° high at 9 pm APR at 40°N: 40° high at 9 pm MAY at 40°N: 62° high at 9 pm JUN at 40°N: 75° high at 9 pm JUL at 40°N: 60° high at 9 pm AUG at 40°N: 37° high at 9 pm SEP at 40°N: 14° high at 9 pm OCT at 40°N: -5° high at 9 pm NOV at 40°N: -20° high at 9 pm DEC at 40°N: -25° high at 9 pm 30°N
JAN at 30°N: -26° high at 9 pm FEB at 30°N: -8° high at 9 pm MAR at 30°N: 13° high at 9 pm APR at 30°N: 39° high at 9 pm MAY at 30°N: 64° high at 9 pm JUN at 30°N: 85° high at 9 pm JUL at 30°N: 62° high at 9 pm AUG at 30°N: 35° high at 9 pm SEP at 30°N: 10° high at 9 pm OCT at 30°N: -12° high at 9 pm NOV at 30°N: -29° high at 9 pm DEC at 30°N: -35° high at 9 pm 20°N
JAN at 20°N: -34° high at 9 pm FEB at 20°N: -13° high at 9 pm MAR at 20°N: 10° high at 9 pm APR at 20°N: 37° high at 9 pm MAY at 20°N: 63° high at 9 pm JUN at 20°N: 84° high at 9 pm JUL at 20°N: 60° high at 9 pm AUG at 20°N: 33° high at 9 pm SEP at 20°N: 6° high at 9 pm OCT at 20°N: -18° high at 9 pm NOV at 20°N: -37° high at 9 pm DEC at 20°N: -45° high at 9 pm 10°N
JAN at 10°N: -42° high at 9 pm FEB at 10°N: -19° high at 9 pm MAR at 10°N: 5° high at 9 pm APR at 10°N: 33° high at 9 pm MAY at 10°N: 59° high at 9 pm JUN at 10°N: 75° high at 9 pm JUL at 10°N: 56° high at 9 pm AUG at 10°N: 29° high at 9 pm SEP at 10°N: 2° high at 9 pm OCT at 10°N: -24° high at 9 pm NOV at 10°N: -46° high at 9 pm DEC at 10°N: -55° high at 9 pm 0°
JAN at 0°: -49° high at 9 pm FEB at 0°: -24° high at 9 pm MAR at 0°: 1° high at 9 pm APR at 0°: 28° high at 9 pm MAY at 0°: 53° high at 9 pm JUN at 0°: 65° high at 9 pm JUL at 0°: 50° high at 9 pm AUG at 0°: 25° high at 9 pm SEP at 0°: -2° high at 9 pm OCT at 0°: -29° high at 9 pm NOV at 0°: -53° high at 9 pm DEC at 0°: -65° high at 9 pm 10°S
JAN at 10°S: -55° high at 9 pm FEB at 10°S: -28° high at 9 pm MAR at 10°S: -3° high at 9 pm APR at 10°S: 23° high at 9 pm MAY at 10°S: 45° high at 9 pm JUN at 10°S: 55° high at 9 pm JUL at 10°S: 43° high at 9 pm AUG at 10°S: 20° high at 9 pm SEP at 10°S: -7° high at 9 pm OCT at 10°S: -33° high at 9 pm NOV at 10°S: -60° high at 9 pm DEC at 10°S: -74° high at 9 pm 20°S
JAN at 20°S: -59° high at 9 pm FEB at 20°S: -32° high at 9 pm MAR at 20°S: -7° high at 9 pm APR at 20°S: 18° high at 9 pm MAY at 20°S: 37° high at 9 pm JUN at 20°S: 45° high at 9 pm JUL at 20°S: 35° high at 9 pm AUG at 20°S: 15° high at 9 pm SEP at 20°S: -11° high at 9 pm OCT at 20°S: -37° high at 9 pm NOV at 20°S: -64° high at 9 pm DEC at 20°S: -84° high at 9 pm 30°S
JAN at 30°S: -60° high at 9 pm FEB at 30°S: -34° high at 9 pm MAR at 30°S: -11° high at 9 pm APR at 30°S: 11° high at 9 pm MAY at 30°S: 28° high at 9 pm JUN at 30°S: 35° high at 9 pm JUL at 30°S: 27° high at 9 pm AUG at 30°S: 9° high at 9 pm SEP at 30°S: -15° high at 9 pm OCT at 30°S: -39° high at 9 pm NOV at 30°S: -66° high at 9 pm DEC at 30°S: -85° high at 9 pm 40°S
JAN at 40°S: -59° high at 9 pm FEB at 40°S: -36° high at 9 pm MAR at 40°S: -15° high at 9 pm APR at 40°S: 5° high at 9 pm MAY at 40°S: 19° high at 9 pm JUN at 40°S: 25° high at 9 pm JUL at 40°S: 18° high at 9 pm AUG at 40°S: 3° high at 9 pm SEP at 40°S: -18° high at 9 pm OCT at 40°S: -40° high at 9 pm NOV at 40°S: -63° high at 9 pm DEC at 40°S: -75° 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 65°S, and never sets north of 65°N.
IC 4420 is 183 million light-years away
The light seen from IC 4420 tonight left it about 183 million years ago, long before modern humans existed. Distance source: Cosmicflows-4 (Tully et al. 2023).
Objects within 6° of IC 4420
75 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
IC 4420 catalog data
Field Value
Constellation Bootes Designations IC 4420, 2MASX J14253941+2522414, MCG +04-34-027, PGC 051520, SDSS J142539.40+252242.0, SDSS J142539.41+252242.1 Type barred spiral galaxy (SBc) Right ascension (J2000) 14h 25.7m Declination (J2000) +25° 23′ Magnitude 15.0 Surface brightness 23.0 mag/arcmin² Apparent size 40″ × 18″ Position angle 18° True size 35,600 light-years Distance 183 million light-years (Cosmicflows-4 (Tully et al. 2023)) Radial velocity 4,945 km/s, redshift 0.01663 Best with Large telescope Best month June Catalog page IC 4001 to 4500
