Sh2-287 is an emission nebula (H II region) in Monoceros
Sh2-287 (LBN 1012) is an emission nebula (H II region) in the constellation Monoceros . It is a telescope object, 6 inches or larger, and it is highest in the evening sky in February.
Nebula: a cloud of gas and dust. Emission nebulae glow on their own, lit by ultraviolet light from hot young stars; reflection nebulae shine by starlight scattered from dust; dark nebulae block the light behind them.
Sh2-287 is Sh2-287 in the Sharpless catalog
Stewart Sharpless listed it in his catalog of H II regions (1959), drawn from the red and blue prints of the Palomar Sky Survey. He rated each region's brightness on a scale of 1 to 3; Sh2-287 is medium (class 2 of 3). It is also listed as LBN 1012.
Finding Sh2-287 from Sirius
Sirius
Sh2-287
MONOCEROS
Sh2-287 lies 12.5° north of Sirius , the magnitude -1.4 star. A fist held at arm's length covers about 10°.
Sh2-287 is highest in the evening in February
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
60°N
JAN at 60°N: 19° high at 9 pm FEB at 60°N: 25° high at 9 pm MAR at 60°N: 23° high at 9 pm APR at 60°N: 13° high at 9 pm MAY at 60°N: -1° high at 9 pm JUN at 60°N: -16° high at 9 pm JUL at 60°N: -28° high at 9 pm AUG at 60°N: -35° high at 9 pm SEP at 60°N: -32° high at 9 pm OCT at 60°N: -22° high at 9 pm NOV at 60°N: -7° high at 9 pm DEC at 60°N: 7° high at 9 pm 50°N
JAN at 50°N: 27° high at 9 pm FEB at 50°N: 35° high at 9 pm MAR at 50°N: 32° high at 9 pm APR at 50°N: 19° high at 9 pm MAY at 50°N: 1° high at 9 pm JUN at 50°N: -19° high at 9 pm JUL at 50°N: -35° high at 9 pm AUG at 50°N: -44° high at 9 pm SEP at 50°N: -40° high at 9 pm OCT at 50°N: -26° high at 9 pm NOV at 50°N: -7° high at 9 pm DEC at 50°N: 11° high at 9 pm 40°N
JAN at 40°N: 35° high at 9 pm FEB at 40°N: 45° high at 9 pm MAR at 40°N: 41° high at 9 pm APR at 40°N: 24° high at 9 pm MAY at 40°N: 2° high at 9 pm JUN at 40°N: -21° high at 9 pm JUL at 40°N: -42° high at 9 pm AUG at 40°N: -54° high at 9 pm SEP at 40°N: -49° high at 9 pm OCT at 40°N: -30° high at 9 pm NOV at 40°N: -8° high at 9 pm DEC at 40°N: 15° high at 9 pm 30°N
JAN at 30°N: 41° high at 9 pm FEB at 30°N: 55° high at 9 pm MAR at 30°N: 49° high at 9 pm APR at 30°N: 28° high at 9 pm MAY at 30°N: 4° high at 9 pm JUN at 30°N: -23° high at 9 pm JUL at 30°N: -47° high at 9 pm AUG at 30°N: -64° high at 9 pm SEP at 30°N: -56° high at 9 pm OCT at 30°N: -34° high at 9 pm NOV at 30°N: -7° high at 9 pm DEC at 30°N: 18° high at 9 pm 20°N
JAN at 20°N: 47° high at 9 pm FEB at 20°N: 65° high at 9 pm MAR at 20°N: 57° high at 9 pm APR at 20°N: 32° high at 9 pm MAY at 20°N: 5° high at 9 pm JUN at 20°N: -24° high at 9 pm JUL at 20°N: -51° high at 9 pm AUG at 20°N: -74° high at 9 pm SEP at 20°N: -62° high at 9 pm OCT at 20°N: -36° high at 9 pm NOV at 20°N: -7° high at 9 pm DEC at 20°N: 20° high at 9 pm 10°N
JAN at 10°N: 52° high at 9 pm FEB at 10°N: 74° high at 9 pm MAR at 10°N: 63° high at 9 pm APR at 10°N: 35° high at 9 pm MAY at 10°N: 6° high at 9 pm JUN at 10°N: -24° high at 9 pm JUL at 10°N: -53° high at 9 pm AUG at 10°N: -82° high at 9 pm SEP at 10°N: -66° high at 9 pm OCT at 10°N: -37° high at 9 pm NOV at 10°N: -7° high at 9 pm DEC at 10°N: 22° high at 9 pm 0°
JAN at 0°: 54° high at 9 pm FEB at 0°: 83° high at 9 pm MAR at 0°: 67° high at 9 pm APR at 0°: 37° high at 9 pm MAY at 0°: 7° high at 9 pm JUN at 0°: -23° high at 9 pm JUL at 0°: -53° high at 9 pm AUG at 0°: -82° high at 9 pm SEP at 0°: -65° high at 9 pm OCT at 0°: -36° high at 9 pm NOV at 0°: -6° high at 9 pm DEC at 0°: 24° high at 9 pm 10°S
JAN at 10°S: 55° high at 9 pm FEB at 10°S: 83° high at 9 pm MAR at 10°S: 67° high at 9 pm APR at 10°S: 37° high at 9 pm MAY at 10°S: 8° high at 9 pm JUN at 10°S: -22° high at 9 pm JUL at 10°S: -50° high at 9 pm AUG at 10°S: -74° high at 9 pm SEP at 10°S: -62° high at 9 pm OCT at 10°S: -35° high at 9 pm NOV at 10°S: -5° high at 9 pm DEC at 10°S: 24° high at 9 pm 20°S
JAN at 20°S: 52° high at 9 pm FEB at 20°S: 74° high at 9 pm MAR at 20°S: 63° high at 9 pm APR at 20°S: 36° high at 9 pm MAY at 20°S: 8° high at 9 pm JUN at 20°S: -20° high at 9 pm JUL at 20°S: -46° high at 9 pm AUG at 20°S: -64° high at 9 pm SEP at 20°S: -56° high at 9 pm OCT at 20°S: -32° high at 9 pm NOV at 20°S: -4° high at 9 pm DEC at 20°S: 24° high at 9 pm 30°S
JAN at 30°S: 48° high at 9 pm FEB at 30°S: 64° high at 9 pm MAR at 30°S: 57° high at 9 pm APR at 30°S: 34° high at 9 pm MAY at 30°S: 9° high at 9 pm JUN at 30°S: -18° high at 9 pm JUL at 30°S: -40° high at 9 pm AUG at 30°S: -55° high at 9 pm SEP at 30°S: -48° high at 9 pm OCT at 30°S: -28° high at 9 pm NOV at 30°S: -3° high at 9 pm DEC at 30°S: 23° high at 9 pm 40°S
JAN at 40°S: 43° high at 9 pm FEB at 40°S: 55° high at 9 pm MAR at 40°S: 49° high at 9 pm APR at 40°S: 31° high at 9 pm MAY at 40°S: 9° high at 9 pm JUN at 40°S: -14° high at 9 pm JUL at 40°S: -34° high at 9 pm AUG at 40°S: -45° high at 9 pm SEP at 40°S: -40° high at 9 pm OCT at 40°S: -23° high at 9 pm NOV at 40°S: -1° high at 9 pm DEC at 40°S: 21° 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 85°N.
The distance to Sh2-287 is not well measured
Objects within 6° of Sh2-287
NGC 2311, open cluster, 35′ Sh2-286, emission nebula (H II region), 1.3° Sh2-288, emission nebula (H II region), 2.3° Sh2-291, emission nebula (H II region), 3.5° NGC 2286, open cluster, 3.5° M50 Heart-Shaped Cluster, open cluster, 3.6° Sh2-289, emission nebula (H II region), 4.3° Sh2-285, emission nebula (H II region), 4.5°
Sh2-287 catalog data
Field Value
Designations LBN 1012 Type emission nebula (H II region) Constellation Monoceros Right ascension (J2000) 07h 00.0m Declination (J2000) -04° 48′ Best month February Best with Telescope Sharpless number Sh2-287 Sharpless brightness Medium (class 2 of 3)
