The sky around NGC 647, 3° across, north up NGC 649 NGC 640 NGC 624 NGC 617 low-power eyepiece, 1° NE 1°
The sky around NGC 647 at true scale, north up and east left, with stars to magnitude 8 and the NGC and IC objects in the field. The circles show the field of a low-power eyepiece and of 10×50 binoculars.

NGC 647 · PGC 006155

NGC 647

Lenticular galaxy in Cetus

Lenticular galaxy in Cetus.

CETUS

The box shows where NGC 647 sits in Cetus.

Constellation
CetusCet
Magnitude
14.0visual
Size
1.3′ × 59″apparent
Distance
-light-years
Best month
Decemberat 9 pm
Best with
Large telescope

NGC 647 is a lenticular galaxy in Cetus

NGC 647 (PGC 006155) is a lenticular galaxy in the constellation Cetus. It shines at magnitude 14.0 and spans 1.3′ × 59″. It is faint: a 10-inch or larger telescope, or a camera, 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 647 from θ Cet

θ Cet NGC 647 CETUS

NGC 647 lies 4.1° east of θ Cet, the magnitude 3.6 star. Three fingers held at arm's length cover about 5°.

NGC 647 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: 12° high at 9 pm FEB at 60°N: -1° high at 9 pm MAR at 60°N: -14° high at 9 pm APR at 60°N: -29° high at 9 pm MAY at 60°N: -38° high at 9 pm JUN at 60°N: -38° high at 9 pm JUL at 60°N: -30° high at 9 pm AUG at 60°N: -16° high at 9 pm SEP at 60°N: -1° high at 9 pm OCT at 60°N: 12° high at 9 pm NOV at 60°N: 20° high at 9 pm DEC at 60°N: 20° high at 9 pm 50°N JAN at 50°N: 19° high at 9 pm FEB at 50°N: 2° high at 9 pm MAR at 50°N: -15° high at 9 pm APR at 50°N: -34° high at 9 pm MAY at 50°N: -47° high at 9 pm JUN at 50°N: -48° high at 9 pm JUL at 50°N: -36° high at 9 pm AUG at 50°N: -18° high at 9 pm SEP at 50°N: 2° high at 9 pm OCT at 50°N: 18° high at 9 pm NOV at 50°N: 29° high at 9 pm DEC at 50°N: 30° high at 9 pm 40°N JAN at 40°N: 26° high at 9 pm FEB at 40°N: 5° high at 9 pm MAR at 40°N: -16° high at 9 pm APR at 40°N: -38° high at 9 pm MAY at 40°N: -56° high at 9 pm JUN at 40°N: -57° high at 9 pm JUL at 40°N: -41° high at 9 pm AUG at 40°N: -19° high at 9 pm SEP at 40°N: 5° high at 9 pm OCT at 40°N: 25° high at 9 pm NOV at 40°N: 39° high at 9 pm DEC at 40°N: 39° high at 9 pm 30°N JAN at 30°N: 32° high at 9 pm FEB at 30°N: 8° high at 9 pm MAR at 30°N: -16° high at 9 pm APR at 30°N: -42° high at 9 pm MAY at 30°N: -64° high at 9 pm JUN at 30°N: -66° high at 9 pm JUL at 30°N: -45° high at 9 pm AUG at 30°N: -19° high at 9 pm SEP at 30°N: 7° high at 9 pm OCT at 30°N: 31° high at 9 pm NOV at 30°N: 48° high at 9 pm DEC at 30°N: 49° high at 9 pm 20°N JAN at 20°N: 37° high at 9 pm FEB at 20°N: 11° high at 9 pm MAR at 20°N: -15° high at 9 pm APR at 20°N: -44° high at 9 pm MAY at 20°N: -70° high at 9 pm JUN at 20°N: -73° high at 9 pm JUL at 20°N: -47° high at 9 pm AUG at 20°N: -19° high at 9 pm SEP at 20°N: 10° high at 9 pm OCT at 20°N: 36° high at 9 pm NOV at 20°N: 57° high at 9 pm DEC at 20°N: 58° high at 9 pm 10°N JAN at 10°N: 42° high at 9 pm FEB at 10°N: 13° high at 9 pm MAR at 10°N: -14° high at 9 pm APR at 10°N: -44° high at 9 pm MAY at 10°N: -73° high at 9 pm JUN at 10°N: -77° high at 9 pm JUL at 10°N: -48° high at 9 pm AUG at 10°N: -18° high at 9 pm SEP at 10°N: 12° high at 9 pm OCT at 10°N: 40° high at 9 pm NOV at 10°N: 65° high at 9 pm DEC at 10°N: 66° high at 9 pm 0° JAN at 0°: 45° high at 9 pm FEB at 0°: 15° high at 9 pm MAR at 0°: -13° high at 9 pm APR at 0°: -43° high at 9 pm MAY at 0°: -71° high at 9 pm JUN at 0°: -74° high at 9 pm JUL at 0°: -46° high at 9 pm AUG at 0°: -16° high at 9 pm SEP at 0°: 14° high at 9 pm OCT at 0°: 43° high at 9 pm NOV at 0°: 72° high at 9 pm DEC at 0°: 73° high at 9 pm 10°S JAN at 10°S: 46° high at 9 pm FEB at 10°S: 16° high at 9 pm MAR at 10°S: -11° high at 9 pm APR at 10°S: -40° high at 9 pm MAY at 10°S: -64° high at 9 pm JUN at 10°S: -67° high at 9 pm JUL at 10°S: -43° high at 9 pm AUG at 10°S: -14° high at 9 pm SEP at 10°S: 15° high at 9 pm OCT at 10°S: 44° high at 9 pm NOV at 10°S: 74° high at 9 pm DEC at 10°S: 76° high at 9 pm 20°S JAN at 20°S: 46° high at 9 pm FEB at 20°S: 17° high at 9 pm MAR at 20°S: -9° high at 9 pm APR at 20°S: -36° high at 9 pm MAY at 20°S: -56° high at 9 pm JUN at 20°S: -58° high at 9 pm JUL at 20°S: -39° high at 9 pm AUG at 20°S: -12° high at 9 pm SEP at 20°S: 16° high at 9 pm OCT at 20°S: 44° high at 9 pm NOV at 20°S: 71° high at 9 pm DEC at 20°S: 73° high at 9 pm 30°S JAN at 30°S: 44° high at 9 pm FEB at 30°S: 17° high at 9 pm MAR at 30°S: -6° high at 9 pm APR at 30°S: -30° high at 9 pm MAY at 30°S: -47° high at 9 pm JUN at 30°S: -49° high at 9 pm JUL at 30°S: -33° high at 9 pm AUG at 30°S: -9° high at 9 pm SEP at 30°S: 17° high at 9 pm OCT at 30°S: 42° high at 9 pm NOV at 30°S: 65° high at 9 pm DEC at 30°S: 66° high at 9 pm 40°S JAN at 40°S: 40° high at 9 pm FEB at 40°S: 17° high at 9 pm MAR at 40°S: -4° high at 9 pm APR at 40°S: -25° high at 9 pm MAY at 40°S: -38° high at 9 pm JUN at 40°S: -39° high at 9 pm JUL at 40°S: -27° high at 9 pm AUG at 40°S: -6° high at 9 pm SEP at 40°S: 17° high at 9 pm OCT at 40°S: 39° high at 9 pm NOV at 40°S: 56° high at 9 pm DEC at 40°S: 57° 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 81°N.

The distance to NGC 647 is not well measured

No reliable distance has been measured for it yet.

Objects within 6° of NGC 647

65 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:

NGC 647 catalog data

FieldValue
ConstellationCetus
DesignationsNGC 647, PGC 006155, MCG -02-05-033, SDSS J013956.19-091432.6
Typelenticular galaxy (S0)
Right ascension (J2000)01h 39.9m
Declination (J2000)-09° 15′
Magnitude14.0
Surface brightness23.5 mag/arcmin²
Apparent size1.3′ × 59″
Position angle19°
Radial velocity12,353 km/s, redshift 0.04209
Best withLarge telescope
Best monthDecember
Catalog pageNGC 501 to 1000