Sh2-200 is a planetary nebula in Cassiopeia
Sh2-200 (LBN 674, PK 138+04.1, PN G138.1+04.1) is a planetary nebula in the constellation Cassiopeia . It is a telescope object, 6 inches or larger, and it is highest in the evening sky in December.
Planetary nebula: a shell of gas thrown off by a dying Sun-like star and lit by the hot core left behind, which becomes a white dwarf. The name comes from their small, round, planet-like look in early telescopes.
Sh2-200 is Sh2-200 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; Sh2-200 is faint (class 1 of 3). It is also listed as LBN 674.
Finding Sh2-200 from γ Per
γ Per
Sh2-200
CASSIOPEIA
Sh2-200 lies 9.3° north of γ Per , the magnitude 2.9 star. A fist held at arm's length covers about 10°.
Sh2-200 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: 79° high at 9 pm FEB at 60°N: 65° high at 9 pm MAR at 60°N: 54° high at 9 pm APR at 60°N: 44° high at 9 pm MAY at 60°N: 37° high at 9 pm JUN at 60°N: 33° high at 9 pm JUL at 60°N: 34° high at 9 pm AUG at 60°N: 39° high at 9 pm SEP at 60°N: 47° high at 9 pm OCT at 60°N: 58° high at 9 pm NOV at 60°N: 72° high at 9 pm DEC at 60°N: 85° high at 9 pm 50°N
JAN at 50°N: 73° high at 9 pm FEB at 50°N: 59° high at 9 pm MAR at 50°N: 47° high at 9 pm APR at 50°N: 35° high at 9 pm MAY at 50°N: 27° high at 9 pm JUN at 50°N: 23° high at 9 pm JUL at 50°N: 24° high at 9 pm AUG at 50°N: 30° high at 9 pm SEP at 50°N: 40° high at 9 pm OCT at 50°N: 52° high at 9 pm NOV at 50°N: 66° high at 9 pm DEC at 50°N: 76° high at 9 pm 40°N
JAN at 40°N: 64° high at 9 pm FEB at 40°N: 52° high at 9 pm MAR at 40°N: 39° high at 9 pm APR at 40°N: 27° high at 9 pm MAY at 40°N: 18° high at 9 pm JUN at 40°N: 13° high at 9 pm JUL at 40°N: 14° high at 9 pm AUG at 40°N: 21° high at 9 pm SEP at 40°N: 31° high at 9 pm OCT at 40°N: 44° high at 9 pm NOV at 40°N: 58° high at 9 pm DEC at 40°N: 67° high at 9 pm 30°N
JAN at 30°N: 54° high at 9 pm FEB at 30°N: 43° high at 9 pm MAR at 30°N: 31° high at 9 pm APR at 30°N: 18° high at 9 pm MAY at 30°N: 8° high at 9 pm JUN at 30°N: 3° high at 9 pm JUL at 30°N: 4° high at 9 pm AUG at 30°N: 11° high at 9 pm SEP at 30°N: 23° high at 9 pm OCT at 30°N: 36° high at 9 pm NOV at 30°N: 49° high at 9 pm DEC at 30°N: 57° high at 9 pm 20°N
JAN at 20°N: 45° high at 9 pm FEB at 20°N: 34° high at 9 pm MAR at 20°N: 22° high at 9 pm APR at 20°N: 9° high at 9 pm MAY at 20°N: -1° high at 9 pm JUN at 20°N: -7° high at 9 pm JUL at 20°N: -6° high at 9 pm AUG at 20°N: 2° high at 9 pm SEP at 20°N: 14° high at 9 pm OCT at 20°N: 27° high at 9 pm NOV at 20°N: 40° high at 9 pm DEC at 20°N: 47° high at 9 pm 10°N
JAN at 10°N: 35° high at 9 pm FEB at 10°N: 25° high at 9 pm MAR at 10°N: 13° high at 9 pm APR at 10°N: -0° high at 9 pm MAY at 10°N: -11° high at 9 pm JUN at 10°N: -17° high at 9 pm JUL at 10°N: -16° high at 9 pm AUG at 10°N: -7° high at 9 pm SEP at 10°N: 5° high at 9 pm OCT at 10°N: 18° high at 9 pm NOV at 10°N: 30° high at 9 pm DEC at 10°N: 37° high at 9 pm 0°
JAN at 0°: 25° high at 9 pm FEB at 0°: 16° high at 9 pm MAR at 0°: 5° high at 9 pm APR at 0°: -9° high at 9 pm MAY at 0°: -21° high at 9 pm JUN at 0°: -27° high at 9 pm JUL at 0°: -25° high at 9 pm AUG at 0°: -17° high at 9 pm SEP at 0°: -4° high at 9 pm OCT at 0°: 9° high at 9 pm NOV at 0°: 21° high at 9 pm DEC at 0°: 27° high at 9 pm 10°S
JAN at 10°S: 15° high at 9 pm FEB at 10°S: 7° high at 9 pm MAR at 10°S: -4° high at 9 pm APR at 10°S: -18° high at 9 pm MAY at 10°S: -30° high at 9 pm JUN at 10°S: -37° high at 9 pm JUL at 10°S: -35° high at 9 pm AUG at 10°S: -26° high at 9 pm SEP at 10°S: -13° high at 9 pm OCT at 10°S: 0° high at 9 pm NOV at 10°S: 11° high at 9 pm DEC at 10°S: 17° high at 9 pm 20°S
JAN at 20°S: 5° high at 9 pm FEB at 20°S: -2° high at 9 pm MAR at 20°S: -13° high at 9 pm APR at 20°S: -27° high at 9 pm MAY at 20°S: -39° high at 9 pm JUN at 20°S: -47° high at 9 pm JUL at 20°S: -45° high at 9 pm AUG at 20°S: -35° high at 9 pm SEP at 20°S: -22° high at 9 pm OCT at 20°S: -9° high at 9 pm NOV at 20°S: 2° high at 9 pm DEC at 20°S: 7° high at 9 pm 30°S
JAN at 30°S: -4° high at 9 pm FEB at 30°S: -12° high at 9 pm MAR at 30°S: -22° high at 9 pm APR at 30°S: -36° high at 9 pm MAY at 30°S: -48° high at 9 pm JUN at 30°S: -57° high at 9 pm JUL at 30°S: -55° high at 9 pm AUG at 30°S: -44° high at 9 pm SEP at 30°S: -30° high at 9 pm OCT at 30°S: -18° high at 9 pm NOV at 30°S: -8° high at 9 pm DEC at 30°S: -3° high at 9 pm 40°S
JAN at 40°S: -14° high at 9 pm FEB at 40°S: -21° high at 9 pm MAR at 40°S: -31° high at 9 pm APR at 40°S: -44° high at 9 pm MAY at 40°S: -57° high at 9 pm JUN at 40°S: -67° high at 9 pm JUL at 40°S: -64° high at 9 pm AUG at 40°S: -52° high at 9 pm SEP at 40°S: -39° high at 9 pm OCT at 40°S: -27° high at 9 pm NOV at 40°S: -17° high at 9 pm DEC at 40°S: -13° 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 27°S, and never sets north of 27°N.
The distance to Sh2-200 is not well measured
Objects within 6° of Sh2-200
Sh2-196, emission nebula (H II region), 2.4° Sh2-201, emission nebula (H II region), 2.5° Sh2-193, emission nebula (H II region), 2.8° Sh2-192, emission nebula (H II region), 2.9° Sh2-194, emission nebula (H II region), 2.9° Sh2-202, emission nebula (H II region), 3.3° NGC 1027, open cluster, 3.5° Sh2-198, emission nebula (H II region), 4.0°
Sh2-200 catalog data
Field Value
Designations LBN 674, PK 138+04.1, PN G138.1+04.1 Type planetary nebula Constellation Cassiopeia Right ascension (J2000) 03h 11.0m Declination (J2000) +62° 49′ Best month December Best with Telescope Sharpless number Sh2-200 Sharpless brightness Faint (class 1 of 3)
