NGC 6101 is a globular cluster in Apus, 47,100 light-years away
NGC 6101 (Caldwell 107) is a globular cluster in the constellation Apus , 47,100 light-years away. It shines at magnitude 9.2 and spans 11′ of sky, about 151 light-years across. It is visible in 10×50 or larger binoculars, and it is highest in the evening sky in July.
Globular cluster: a ball of 100,000 to a few million old stars packed into a sphere about 100 light-years across. About 160 orbit the Milky Way, most of them in the halo around its center.
Finding NGC 6101 from Atria
Atria
NGC 6101
APUS
NGC 6101 lies 3.7° southwest of Atria , the magnitude 1.9 star. Three fingers held at arm's length cover about 5°.
NGC 6101 is highest in the evening in July
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60°N
JAN at 60°N: -78° high at 9 pm FEB at 60°N: -72° high at 9 pm MAR at 60°N: -64° high at 9 pm APR at 60°N: -55° high at 9 pm MAY at 60°N: -48° high at 9 pm JUN at 60°N: -44° high at 9 pm JUL at 60°N: -42° high at 9 pm AUG at 60°N: -44° high at 9 pm SEP at 60°N: -49° high at 9 pm OCT at 60°N: -56° high at 9 pm NOV at 60°N: -65° high at 9 pm DEC at 60°N: -74° high at 9 pm 50°N
JAN at 50°N: -68° high at 9 pm FEB at 50°N: -63° high at 9 pm MAR at 50°N: -55° high at 9 pm APR at 50°N: -46° high at 9 pm MAY at 50°N: -39° high at 9 pm JUN at 50°N: -34° high at 9 pm JUL at 50°N: -32° high at 9 pm AUG at 50°N: -34° high at 9 pm SEP at 50°N: -40° high at 9 pm OCT at 50°N: -47° high at 9 pm NOV at 50°N: -57° high at 9 pm DEC at 50°N: -65° high at 9 pm 40°N
JAN at 40°N: -58° high at 9 pm FEB at 40°N: -54° high at 9 pm MAR at 40°N: -46° high at 9 pm APR at 40°N: -37° high at 9 pm MAY at 40°N: -29° high at 9 pm JUN at 40°N: -24° high at 9 pm JUL at 40°N: -22° high at 9 pm AUG at 40°N: -24° high at 9 pm SEP at 40°N: -30° high at 9 pm OCT at 40°N: -38° high at 9 pm NOV at 40°N: -48° high at 9 pm DEC at 40°N: -55° high at 9 pm 30°N
JAN at 30°N: -48° high at 9 pm FEB at 30°N: -44° high at 9 pm MAR at 30°N: -37° high at 9 pm APR at 30°N: -28° high at 9 pm MAY at 30°N: -20° high at 9 pm JUN at 30°N: -14° high at 9 pm JUL at 30°N: -12° high at 9 pm AUG at 30°N: -15° high at 9 pm SEP at 30°N: -21° high at 9 pm OCT at 30°N: -29° high at 9 pm NOV at 30°N: -38° high at 9 pm DEC at 30°N: -45° high at 9 pm 20°N
JAN at 20°N: -38° high at 9 pm FEB at 20°N: -34° high at 9 pm MAR at 20°N: -28° high at 9 pm APR at 20°N: -18° high at 9 pm MAY at 20°N: -10° high at 9 pm JUN at 20°N: -4° high at 9 pm JUL at 20°N: -2° high at 9 pm AUG at 20°N: -5° high at 9 pm SEP at 20°N: -11° high at 9 pm OCT at 20°N: -20° high at 9 pm NOV at 20°N: -29° high at 9 pm DEC at 20°N: -35° high at 9 pm 10°N
JAN at 10°N: -28° high at 9 pm FEB at 10°N: -25° high at 9 pm MAR at 10°N: -18° high at 9 pm APR at 10°N: -9° high at 9 pm MAY at 10°N: -0° high at 9 pm JUN at 10°N: 6° high at 9 pm JUL at 10°N: 8° high at 9 pm AUG at 10°N: 5° high at 9 pm SEP at 10°N: -2° high at 9 pm OCT at 10°N: -10° high at 9 pm NOV at 10°N: -19° high at 9 pm DEC at 10°N: -26° high at 9 pm 0°
JAN at 0°: -18° high at 9 pm FEB at 0°: -15° high at 9 pm MAR at 0°: -8° high at 9 pm APR at 0°: 1° high at 9 pm MAY at 0°: 9° high at 9 pm JUN at 0°: 16° high at 9 pm JUL at 0°: 18° high at 9 pm AUG at 0°: 15° high at 9 pm SEP at 0°: 8° high at 9 pm OCT at 0°: -1° high at 9 pm NOV at 0°: -10° high at 9 pm DEC at 0°: -16° high at 9 pm 10°S
JAN at 10°S: -8° high at 9 pm FEB at 10°S: -5° high at 9 pm MAR at 10°S: 1° high at 9 pm APR at 10°S: 10° high at 9 pm MAY at 10°S: 19° high at 9 pm JUN at 10°S: 26° high at 9 pm JUL at 10°S: 28° high at 9 pm AUG at 10°S: 25° high at 9 pm SEP at 10°S: 18° high at 9 pm OCT at 10°S: 9° high at 9 pm NOV at 10°S: 0° high at 9 pm DEC at 10°S: -6° high at 9 pm 20°S
JAN at 20°S: 2° high at 9 pm FEB at 20°S: 5° high at 9 pm MAR at 20°S: 11° high at 9 pm APR at 20°S: 20° high at 9 pm MAY at 20°S: 28° high at 9 pm JUN at 20°S: 35° high at 9 pm JUL at 20°S: 38° high at 9 pm AUG at 20°S: 35° high at 9 pm SEP at 20°S: 27° high at 9 pm OCT at 20°S: 18° high at 9 pm NOV at 20°S: 10° high at 9 pm DEC at 20°S: 4° high at 9 pm 30°S
JAN at 30°S: 12° high at 9 pm FEB at 30°S: 15° high at 9 pm MAR at 30°S: 20° high at 9 pm APR at 30°S: 29° high at 9 pm MAY at 30°S: 38° high at 9 pm JUN at 30°S: 45° high at 9 pm JUL at 30°S: 48° high at 9 pm AUG at 30°S: 44° high at 9 pm SEP at 30°S: 37° high at 9 pm OCT at 30°S: 28° high at 9 pm NOV at 30°S: 19° high at 9 pm DEC at 30°S: 14° high at 9 pm 40°S
JAN at 40°S: 22° high at 9 pm FEB at 40°S: 25° high at 9 pm MAR at 40°S: 30° high at 9 pm APR at 40°S: 38° high at 9 pm MAY at 40°S: 47° high at 9 pm JUN at 40°S: 55° high at 9 pm JUL at 40°S: 58° high at 9 pm AUG at 40°S: 54° high at 9 pm SEP at 40°S: 46° high at 9 pm OCT at 40°S: 37° high at 9 pm NOV at 40°S: 29° high at 9 pm DEC at 40°S: 24° 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 18°N, and never sets south of 18°S.
NGC 6101 is 47,100 light-years away
The light seen from NGC 6101 tonight left it about 47,100 years ago. It ranks 68 of 109 by distance among the 109 Caldwell objects. Distance source: Baumgardt & Vasiliev 2021.
Objects within 6° of NGC 6101
No other Messier, Caldwell or Herschel 400 object lies within 6°.
NGC 6101 catalog data
Field Value
Designations Caldwell 107, NGC 6101 Type globular cluster Constellation Apus Right ascension (J2000) 16h 25.8m Declination (J2000) -72° 12′ Magnitude 9.2 Apparent size 11′ True size 151 light-years Distance 47,100 light-years (Baumgardt & Vasiliev 2021) Best month July Best with Large binoculars
