NGC 4100 is a spiral galaxy in Ursa Major, 66 million light-years away
NGC 4100 is a spiral galaxy in the constellation Ursa Major , 66 million light-years away. It shines at magnitude 11.0 and spans 4.6′ × 1.3′ of sky, about 87,700 light-years across. It is a telescope object, 6 inches or larger, 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 4100 from Phecda
Phecda
NGC 4100
URSA MAJOR
NGC 4100 lies 4.5° southeast of Phecda , the magnitude 2.4 star. Three fingers held at arm's length cover about 5°.
NGC 4100 is highest in the evening in May
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
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DEC
60°N
JAN at 60°N: 33° high at 9 pm FEB at 60°N: 45° high at 9 pm MAR at 60°N: 58° high at 9 pm APR at 60°N: 73° high at 9 pm MAY at 60°N: 79° high at 9 pm JUN at 60°N: 67° high at 9 pm JUL at 60°N: 52° high at 9 pm AUG at 60°N: 38° high at 9 pm SEP at 60°N: 28° high at 9 pm OCT at 60°N: 21° high at 9 pm NOV at 60°N: 20° high at 9 pm DEC at 60°N: 24° high at 9 pm 50°N
JAN at 50°N: 25° high at 9 pm FEB at 50°N: 40° high at 9 pm MAR at 50°N: 56° high at 9 pm APR at 50°N: 75° high at 9 pm MAY at 50°N: 86° high at 9 pm JUN at 50°N: 66° high at 9 pm JUL at 50°N: 49° high at 9 pm AUG at 50°N: 32° high at 9 pm SEP at 50°N: 19° high at 9 pm OCT at 50°N: 11° high at 9 pm NOV at 50°N: 10° 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: 34° high at 9 pm MAR at 40°N: 52° high at 9 pm APR at 40°N: 71° high at 9 pm MAY at 40°N: 79° high at 9 pm JUN at 40°N: 62° high at 9 pm JUL at 40°N: 43° high at 9 pm AUG at 40°N: 25° high at 9 pm SEP at 40°N: 11° high at 9 pm OCT at 40°N: 2° high at 9 pm NOV at 40°N: -0° high at 9 pm DEC at 40°N: 5° high at 9 pm 30°N
JAN at 30°N: 10° high at 9 pm FEB at 30°N: 28° high at 9 pm MAR at 30°N: 45° high at 9 pm APR at 30°N: 64° high at 9 pm MAY at 30°N: 70° high at 9 pm JUN at 30°N: 56° high at 9 pm JUL at 30°N: 37° high at 9 pm AUG at 30°N: 18° high at 9 pm SEP at 30°N: 2° high at 9 pm OCT at 30°N: -8° high at 9 pm NOV at 30°N: -10° high at 9 pm DEC at 30°N: -4° high at 9 pm 20°N
JAN at 20°N: 2° high at 9 pm FEB at 20°N: 21° high at 9 pm MAR at 20°N: 38° high at 9 pm APR at 20°N: 55° high at 9 pm MAY at 20°N: 60° high at 9 pm JUN at 20°N: 48° high at 9 pm JUL at 20°N: 30° high at 9 pm AUG at 20°N: 11° 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: -20° high at 9 pm DEC at 20°N: -13° high at 9 pm 10°N
JAN at 10°N: -6° high at 9 pm FEB at 10°N: 13° high at 9 pm MAR at 10°N: 31° high at 9 pm APR at 10°N: 46° high at 9 pm MAY at 10°N: 50° high at 9 pm JUN at 10°N: 40° high at 9 pm JUL at 10°N: 23° high at 9 pm AUG at 10°N: 3° high at 9 pm SEP at 10°N: -15° high at 9 pm OCT at 10°N: -27° high at 9 pm NOV at 10°N: -30° high at 9 pm DEC at 10°N: -22° high at 9 pm 0°
JAN at 0°: -14° high at 9 pm FEB at 0°: 6° high at 9 pm MAR at 0°: 23° high at 9 pm APR at 0°: 37° high at 9 pm MAY at 0°: 40° high at 9 pm JUN at 0°: 31° high at 9 pm JUL at 0°: 15° high at 9 pm AUG at 0°: -5° high at 9 pm SEP at 0°: -23° high at 9 pm OCT at 0°: -37° high at 9 pm NOV at 0°: -40° high at 9 pm DEC at 0°: -31° high at 9 pm 10°S
JAN at 10°S: -22° high at 9 pm FEB at 10°S: -2° high at 9 pm MAR at 10°S: 14° high at 9 pm APR at 10°S: 27° high at 9 pm MAY at 10°S: 30° high at 9 pm JUN at 10°S: 22° high at 9 pm JUL at 10°S: 7° high at 9 pm AUG at 10°S: -12° high at 9 pm SEP at 10°S: -31° high at 9 pm OCT at 10°S: -46° high at 9 pm NOV at 10°S: -50° high at 9 pm DEC at 10°S: -40° high at 9 pm 20°S
JAN at 20°S: -29° high at 9 pm FEB at 20°S: -10° high at 9 pm MAR at 20°S: 6° high at 9 pm APR at 20°S: 17° high at 9 pm MAY at 20°S: 20° high at 9 pm JUN at 20°S: 13° high at 9 pm JUL at 20°S: -1° high at 9 pm AUG at 20°S: -20° high at 9 pm SEP at 20°S: -39° high at 9 pm OCT at 20°S: -55° high at 9 pm NOV at 20°S: -60° high at 9 pm DEC at 20°S: -48° high at 9 pm 30°S
JAN at 30°S: -36° high at 9 pm FEB at 30°S: -17° high at 9 pm MAR at 30°S: -3° high at 9 pm APR at 30°S: 8° high at 9 pm MAY at 30°S: 10° high at 9 pm JUN at 30°S: 4° high at 9 pm JUL at 30°S: -9° high at 9 pm AUG at 30°S: -27° high at 9 pm SEP at 30°S: -46° high at 9 pm OCT at 30°S: -64° high at 9 pm NOV at 30°S: -70° high at 9 pm DEC at 30°S: -56° high at 9 pm 40°S
JAN at 40°S: -42° high at 9 pm FEB at 40°S: -25° high at 9 pm MAR at 40°S: -11° high at 9 pm APR at 40°S: -2° high at 9 pm MAY at 40°S: 0° high at 9 pm JUN at 40°S: -5° high at 9 pm JUL at 40°S: -17° high at 9 pm AUG at 40°S: -33° high at 9 pm SEP at 40°S: -52° high at 9 pm OCT at 40°S: -71° high at 9 pm NOV at 40°S: -79° high at 9 pm DEC at 40°S: -62° 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 40°S, and never sets north of 40°N.
NGC 4100 is 66 million light-years away
The light seen from NGC 4100 tonight left it about 66 million years ago, long before modern humans existed. Distance source: Cosmicflows-4 (Tully et al. 2023).
Objects within 6° of NGC 4100
71 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
NGC 4085, mixed spiral galaxy, 47′ NGC 4088, mixed spiral galaxy, 58′ NGC 4047, spiral galaxy, 1.1° NGC 4157, mixed spiral galaxy, 1.2° NGC 4026, lenticular galaxy, 1.7° NGC 4096, mixed spiral galaxy, 2.1° NGC 4220, lenticular galaxy, 2.4° NGC 3928 Miniature Spiral, elliptical galaxy, 2.5°
NGC 4100 catalog data
Field Value
Constellation Ursa Major Designations NGC 4100, 2MASX J12060860+4934563, IRAS 12036+4951, MCG +08-22-068, PGC 038370, SDSS J120608.45+493457.6, UGC 07095 Type spiral galaxy (Sbc) Right ascension (J2000) 12h 06.1m Declination (J2000) +49° 35′ Magnitude 11.0 Surface brightness 22.7 mag/arcmin² Apparent size 4.6′ × 1.3′ Position angle 167° True size 87,700 light-years Distance 66 million light-years (Cosmicflows-4 (Tully et al. 2023)) Radial velocity 1,072 km/s, redshift 0.00358 Best with Telescope Best month May Catalog page NGC 4001 to 4500
