The sky around NGC 634, 3° across, north up low-power eyepiece, 1° NE 1°
The sky around NGC 634 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.

PGC 6059 · UGC 1164

NGC 634

Spiral galaxy (Sa) in Triangulum

Spiral galaxy (Sa) in Triangulum, 232 million light-years away.

TRIANGULUM

The box shows where NGC 634 sits in Triangulum.

Constellation
TriangulumTri
Magnitude
13.8visual
Size
1.8′ × 36″about 121,400 light-years
Distance
232 million lylight-years
Best month
Decemberat 9 pm
Best with
Telescope

NGC 634 is a spiral galaxy (Sa) in Triangulum, 232 million light-years away

NGC 634 (PGC 6059, UGC 1164) is a spiral galaxy (Sa) in the constellation Triangulum, 232 million light-years away. It shines at magnitude 13.8 and spans 1.8′ × 36″ of sky, about 121,400 light-years across. It is a telescope object, 6 inches or larger, and it is highest in the evening sky in December.

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 634 from Mirach

Mirach NGC 634 TRIANGULUM

NGC 634 lies 5.8° east of Mirach, the magnitude 2.1 star. Three fingers held at arm's length cover about 5°.

NGC 634 is highest in the evening in December

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 60°N JAN at 60°N: 52° high at 9 pm FEB at 60°N: 37° high at 9 pm MAR at 60°N: 24° high at 9 pm APR at 60°N: 13° high at 9 pm MAY at 60°N: 6° high at 9 pm JUN at 60°N: 6° high at 9 pm JUL at 60°N: 12° high at 9 pm AUG at 60°N: 23° high at 9 pm SEP at 60°N: 37° high at 9 pm OCT at 60°N: 52° high at 9 pm NOV at 60°N: 63° high at 9 pm DEC at 60°N: 64° high at 9 pm 50°N JAN at 50°N: 54° high at 9 pm FEB at 50°N: 35° high at 9 pm MAR at 50°N: 19° high at 9 pm APR at 50°N: 5° high at 9 pm MAY at 50°N: -3° high at 9 pm JUN at 50°N: -4° high at 9 pm JUL at 50°N: 4° high at 9 pm AUG at 50°N: 17° high at 9 pm SEP at 50°N: 35° high at 9 pm OCT at 50°N: 54° high at 9 pm NOV at 50°N: 72° high at 9 pm DEC at 50°N: 72° high at 9 pm 40°N JAN at 40°N: 54° high at 9 pm FEB at 40°N: 32° high at 9 pm MAR at 40°N: 13° high at 9 pm APR at 40°N: -3° high at 9 pm MAY at 40°N: -13° high at 9 pm JUN at 40°N: -14° high at 9 pm JUL at 40°N: -5° high at 9 pm AUG at 40°N: 12° high at 9 pm SEP at 40°N: 32° high at 9 pm OCT at 40°N: 54° high at 9 pm NOV at 40°N: 77° high at 9 pm DEC at 40°N: 78° high at 9 pm 30°N JAN at 30°N: 52° high at 9 pm FEB at 30°N: 28° high at 9 pm MAR at 30°N: 7° high at 9 pm APR at 30°N: -11° high at 9 pm MAY at 30°N: -23° high at 9 pm JUN at 30°N: -23° high at 9 pm JUL at 30°N: -13° high at 9 pm AUG at 30°N: 5° high at 9 pm SEP at 30°N: 28° high at 9 pm OCT at 30°N: 51° high at 9 pm NOV at 30°N: 76° high at 9 pm DEC at 30°N: 77° high at 9 pm 20°N JAN at 20°N: 48° high at 9 pm FEB at 20°N: 23° high at 9 pm MAR at 20°N: 1° high at 9 pm APR at 20°N: -19° high at 9 pm MAY at 20°N: -32° high at 9 pm JUN at 20°N: -33° high at 9 pm JUL at 20°N: -21° high at 9 pm AUG at 20°N: -1° high at 9 pm SEP at 20°N: 23° high at 9 pm OCT at 20°N: 47° high at 9 pm NOV at 20°N: 70° high at 9 pm DEC at 20°N: 70° high at 9 pm 10°N JAN at 10°N: 42° high at 9 pm FEB at 10°N: 18° high at 9 pm MAR at 10°N: -5° high at 9 pm APR at 10°N: -27° high at 9 pm MAY at 10°N: -42° high at 9 pm JUN at 10°N: -43° high at 9 pm JUL at 10°N: -29° high at 9 pm AUG at 10°N: -7° high at 9 pm SEP at 10°N: 18° high at 9 pm OCT at 10°N: 41° high at 9 pm NOV at 10°N: 61° high at 9 pm DEC at 10°N: 62° high at 9 pm 0° JAN at 0°: 35° high at 9 pm FEB at 0°: 12° high at 9 pm MAR at 0°: -11° high at 9 pm APR at 0°: -34° high at 9 pm MAY at 0°: -51° high at 9 pm JUN at 0°: -52° high at 9 pm JUL at 0°: -36° high at 9 pm AUG at 0°: -13° high at 9 pm SEP at 0°: 12° high at 9 pm OCT at 0°: 35° high at 9 pm NOV at 0°: 52° high at 9 pm DEC at 0°: 52° high at 9 pm 10°S JAN at 10°S: 28° high at 9 pm FEB at 10°S: 6° high at 9 pm MAR at 10°S: -16° high at 9 pm APR at 10°S: -41° high at 9 pm MAY at 10°S: -60° high at 9 pm JUN at 10°S: -62° high at 9 pm JUL at 10°S: -43° high at 9 pm AUG at 10°S: -19° high at 9 pm SEP at 10°S: 6° high at 9 pm OCT at 10°S: 27° high at 9 pm NOV at 10°S: 42° high at 9 pm DEC at 10°S: 43° high at 9 pm 20°S JAN at 20°S: 20° high at 9 pm FEB at 20°S: -0° high at 9 pm MAR at 20°S: -22° high at 9 pm APR at 20°S: -47° high at 9 pm MAY at 20°S: -69° high at 9 pm JUN at 20°S: -70° high at 9 pm JUL at 20°S: -49° high at 9 pm AUG at 20°S: -24° high at 9 pm SEP at 20°S: -0° high at 9 pm OCT at 20°S: 20° high at 9 pm NOV at 20°S: 33° high at 9 pm DEC at 20°S: 33° high at 9 pm 30°S JAN at 30°S: 12° high at 9 pm FEB at 30°S: -7° high at 9 pm MAR at 30°S: -27° high at 9 pm APR at 30°S: -51° high at 9 pm MAY at 30°S: -75° high at 9 pm JUN at 30°S: -77° high at 9 pm JUL at 30°S: -53° high at 9 pm AUG at 30°S: -29° high at 9 pm SEP at 30°S: -6° high at 9 pm OCT at 30°S: 12° high at 9 pm NOV at 30°S: 23° high at 9 pm DEC at 30°S: 23° high at 9 pm 40°S JAN at 40°S: 4° high at 9 pm FEB at 40°S: -12° high at 9 pm MAR at 40°S: -31° high at 9 pm APR at 40°S: -53° high at 9 pm MAY at 40°S: -76° high at 9 pm JUN at 40°S: -78° high at 9 pm JUL at 40°S: -56° high at 9 pm AUG at 40°S: -33° high at 9 pm SEP at 40°S: -12° high at 9 pm OCT at 40°S: 4° high at 9 pm NOV at 40°S: 13° high at 9 pm DEC at 40°S: 14° 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 55°S, and never sets north of 55°N.

NGC 634 is 232 million light-years away

The light seen from NGC 634 tonight left it about 232 million years ago, long before modern humans existed. It ranks 325 of 422 by distance among the galaxies on Go Astronomy. Distance source: Cosmicflows-4 (Tully et al. 2023).

Objects within 6° of NGC 634

NGC 634 catalog data

FieldValue
DesignationsPGC 6059, UGC 1164, NGC 634
Typespiral galaxy (Sa)
ConstellationTriangulum
Right ascension (J2000)01h 38.3m
Declination (J2000)+35° 22′
Magnitude13.8
Surface brightness23.4 mag/arcmin²
Apparent size1.8′ × 36″
True size121,400 light-years
Distance232 million light-years (Cosmicflows-4 (Tully et al. 2023))
Best monthDecember
Best withTelescope