The sky around Koposov 1, 3° across, north up low-power eyepiece, 1° NE 1°
The sky around Koposov 1 at true scale, north up and east left, with stars to magnitude 8. The circles show the field of a low-power eyepiece and of 10×50 binoculars.

Koposov 1

Globular cluster in Virgo

Globular cluster in Virgo, 158,000 light-years away.

VIRGO

The box shows where Koposov 1 sits in Virgo.

Constellation
VirgoVir
Magnitude
14.2visual
Size
-apparent
Distance
158,000 lylight-years
Best month
Mayat 9 pm
Best with
Telescope

Koposov 1 is a globular cluster in Virgo, 158,000 light-years away

Koposov 1 is a globular cluster in the constellation Virgo, 158,000 light-years away. It shines at magnitude 14.2. It is a telescope object, 6 inches or larger, and it is highest in the evening sky in May.

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 Koposov 1 from Denebola

Denebola Koposov 1 VIRGO

Koposov 1 lies 3.4° southeast of Denebola, the magnitude 2.1 star. Three fingers held at arm's length cover about 5°.

Koposov 1 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: 1° high at 9 pm FEB at 60°N: 16° high at 9 pm MAR at 60°N: 29° high at 9 pm APR at 60°N: 40° high at 9 pm MAY at 60°N: 42° high at 9 pm JUN at 60°N: 34° high at 9 pm JUL at 60°N: 21° high at 9 pm AUG at 60°N: 6° high at 9 pm SEP at 60°N: -7° high at 9 pm OCT at 60°N: -16° high at 9 pm NOV at 60°N: -17° high at 9 pm DEC at 60°N: -11° high at 9 pm 50°N JAN at 50°N: -3° high at 9 pm FEB at 50°N: 16° high at 9 pm MAR at 50°N: 33° high at 9 pm APR at 50°N: 48° high at 9 pm MAY at 50°N: 52° high at 9 pm JUN at 50°N: 41° high at 9 pm JUL at 50°N: 23° high at 9 pm AUG at 50°N: 4° high at 9 pm SEP at 50°N: -14° high at 9 pm OCT at 50°N: -25° high at 9 pm NOV at 50°N: -27° high at 9 pm DEC at 50°N: -19° high at 9 pm 40°N JAN at 40°N: -7° high at 9 pm FEB at 40°N: 16° high at 9 pm MAR at 40°N: 37° high at 9 pm APR at 40°N: 56° high at 9 pm MAY at 40°N: 61° high at 9 pm JUN at 40°N: 46° high at 9 pm JUL at 40°N: 25° high at 9 pm AUG at 40°N: 1° high at 9 pm SEP at 40°N: -20° high at 9 pm OCT at 40°N: -34° high at 9 pm NOV at 40°N: -37° high at 9 pm DEC at 40°N: -26° high at 9 pm 30°N JAN at 30°N: -11° high at 9 pm FEB at 30°N: 15° high at 9 pm MAR at 30°N: 39° high at 9 pm APR at 30°N: 63° high at 9 pm MAY at 30°N: 71° high at 9 pm JUN at 30°N: 50° high at 9 pm JUL at 30°N: 25° high at 9 pm AUG at 30°N: -1° high at 9 pm SEP at 30°N: -25° high at 9 pm OCT at 30°N: -43° high at 9 pm NOV at 30°N: -47° high at 9 pm DEC at 30°N: -34° high at 9 pm 20°N JAN at 20°N: -14° high at 9 pm FEB at 20°N: 14° high at 9 pm MAR at 20°N: 40° high at 9 pm APR at 20°N: 68° high at 9 pm MAY at 20°N: 79° high at 9 pm JUN at 20°N: 52° high at 9 pm JUL at 20°N: 24° high at 9 pm AUG at 20°N: -4° high at 9 pm SEP at 20°N: -31° high at 9 pm OCT at 20°N: -52° high at 9 pm NOV at 20°N: -56° high at 9 pm DEC at 20°N: -40° high at 9 pm 10°N JAN at 10°N: -17° high at 9 pm FEB at 10°N: 12° high at 9 pm MAR at 10°N: 39° high at 9 pm APR at 10°N: 69° high at 9 pm MAY at 10°N: 82° high at 9 pm JUN at 10°N: 52° high at 9 pm JUL at 10°N: 23° high at 9 pm AUG at 10°N: -6° high at 9 pm SEP at 10°N: -35° high at 9 pm OCT at 10°N: -59° high at 9 pm NOV at 10°N: -66° high at 9 pm DEC at 10°N: -45° high at 9 pm 0° JAN at 0°: -20° high at 9 pm FEB at 0°: 10° high at 9 pm MAR at 0°: 37° high at 9 pm APR at 0°: 65° high at 9 pm MAY at 0°: 75° high at 9 pm JUN at 0°: 50° high at 9 pm JUL at 0°: 21° high at 9 pm AUG at 0°: -9° high at 9 pm SEP at 0°: -38° high at 9 pm OCT at 0°: -66° high at 9 pm NOV at 0°: -75° high at 9 pm DEC at 0°: -49° high at 9 pm 10°S JAN at 10°S: -22° high at 9 pm FEB at 10°S: 8° high at 9 pm MAR at 10°S: 34° high at 9 pm APR at 10°S: 59° high at 9 pm MAY at 10°S: 66° high at 9 pm JUN at 10°S: 46° high at 9 pm JUL at 10°S: 19° high at 9 pm AUG at 10°S: -11° high at 9 pm SEP at 10°S: -40° high at 9 pm OCT at 10°S: -69° high at 9 pm NOV at 10°S: -81° high at 9 pm DEC at 10°S: -52° high at 9 pm 20°S JAN at 20°S: -23° high at 9 pm FEB at 20°S: 5° high at 9 pm MAR at 20°S: 29° high at 9 pm APR at 20°S: 51° high at 9 pm MAY at 20°S: 57° high at 9 pm JUN at 20°S: 40° high at 9 pm JUL at 20°S: 16° high at 9 pm AUG at 20°S: -12° high at 9 pm SEP at 20°S: -41° high at 9 pm OCT at 20°S: -68° high at 9 pm NOV at 20°S: -78° high at 9 pm DEC at 20°S: -52° high at 9 pm 30°S JAN at 30°S: -24° high at 9 pm FEB at 30°S: 3° high at 9 pm MAR at 30°S: 24° high at 9 pm APR at 30°S: 43° high at 9 pm MAY at 30°S: 47° high at 9 pm JUN at 30°S: 34° high at 9 pm JUL at 30°S: 12° high at 9 pm AUG at 30°S: -14° high at 9 pm SEP at 30°S: -40° 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: -50° high at 9 pm 40°S JAN at 40°S: -23° high at 9 pm FEB at 40°S: -0° high at 9 pm MAR at 40°S: 19° high at 9 pm APR at 40°S: 34° high at 9 pm MAY at 40°S: 37° high at 9 pm JUN at 40°S: 27° high at 9 pm JUL at 40°S: 8° high at 9 pm AUG at 40°S: -14° high at 9 pm SEP at 40°S: -38° high at 9 pm OCT at 40°S: -57° high at 9 pm NOV at 40°S: -61° high at 9 pm DEC at 40°S: -46° 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 78°S, and never sets north of 78°N.

Koposov 1 is 158,000 light-years away

The light seen from Koposov 1 tonight left it about 158,000 years ago. It ranks 76 of 78 by distance among the star clusters on Go Astronomy. Distance source: Baumgardt and Vasiliev 2021 compilation.

Objects within 6° of Koposov 1

Koposov 1 catalog data

FieldValue
Typeglobular cluster
ConstellationVirgo
Right ascension (J2000)11h 59.3m
Declination (J2000)+12° 16′
Magnitude14.2
Distance158,000 light-years (Baumgardt and Vasiliev 2021 compilation)
Best monthMay
Best withTelescope