RCW 113 is an emission nebula (H II region) in Scorpius, 5,070 light-years away
RCW 113 is an emission nebula (H II region) in the constellation Scorpius , 5,070 light-years away. spans 6° of sky, about 531 light-years across. It is a telescope object, 6 inches or larger, and it is highest in the evening sky in July.
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.
Finding RCW 113 from μ1 Sco
μ1 Sco
RCW 113
SCORPIUS
RCW 113 lies 4.2° south of μ1 Sco , the magnitude 3.0 star. Three fingers held at arm's length cover about 5°.
RCW 113 is highest in the evening in July
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60°N
JAN at 60°N: -72° high at 9 pm FEB at 60°N: -66° high at 9 pm MAR at 60°N: -53° high at 9 pm APR at 60°N: -38° high at 9 pm MAY at 60°N: -25° high at 9 pm JUN at 60°N: -16° high at 9 pm JUL at 60°N: -12° high at 9 pm AUG at 60°N: -14° high at 9 pm SEP at 60°N: -22° high at 9 pm OCT at 60°N: -33° high at 9 pm NOV at 60°N: -48° high at 9 pm DEC at 60°N: -62° high at 9 pm 50°N
JAN at 50°N: -82° high at 9 pm FEB at 50°N: -70° high at 9 pm MAR at 50°N: -52° high at 9 pm APR at 50°N: -34° high at 9 pm MAY at 50°N: -18° high at 9 pm JUN at 50°N: -7° high at 9 pm JUL at 50°N: -2° high at 9 pm AUG at 50°N: -5° high at 9 pm SEP at 50°N: -14° high at 9 pm OCT at 50°N: -28° high at 9 pm NOV at 50°N: -46° high at 9 pm DEC at 50°N: -65° high at 9 pm 40°N
JAN at 40°N: -86° high at 9 pm FEB at 40°N: -70° high at 9 pm MAR at 40°N: -50° high at 9 pm APR at 40°N: -29° high at 9 pm MAY at 40°N: -11° high at 9 pm JUN at 40°N: 2° high at 9 pm JUL at 40°N: 8° high at 9 pm AUG at 40°N: 5° high at 9 pm SEP at 40°N: -6° high at 9 pm OCT at 40°N: -23° high at 9 pm NOV at 40°N: -43° high at 9 pm DEC at 40°N: -64° high at 9 pm 30°N
JAN at 30°N: -77° high at 9 pm FEB at 30°N: -65° high at 9 pm MAR at 30°N: -45° high at 9 pm APR at 30°N: -23° high at 9 pm MAY at 30°N: -4° high at 9 pm JUN at 30°N: 11° high at 9 pm JUL at 30°N: 18° high at 9 pm AUG at 30°N: 14° high at 9 pm SEP at 30°N: 1° high at 9 pm OCT at 30°N: -16° high at 9 pm NOV at 30°N: -38° high at 9 pm DEC at 30°N: -60° high at 9 pm 20°N
JAN at 20°N: -68° high at 9 pm FEB at 20°N: -58° high at 9 pm MAR at 20°N: -39° high at 9 pm APR at 20°N: -17° high at 9 pm MAY at 20°N: 3° high at 9 pm JUN at 20°N: 20° high at 9 pm JUL at 20°N: 28° high at 9 pm AUG at 20°N: 24° high at 9 pm SEP at 20°N: 9° high at 9 pm OCT at 20°N: -10° high at 9 pm NOV at 20°N: -32° high at 9 pm DEC at 20°N: -53° high at 9 pm 10°N
JAN at 10°N: -58° high at 9 pm FEB at 10°N: -50° high at 9 pm MAR at 10°N: -33° high at 9 pm APR at 10°N: -10° high at 9 pm MAY at 10°N: 11° high at 9 pm JUN at 10°N: 29° high at 9 pm JUL at 10°N: 38° high at 9 pm AUG at 10°N: 33° high at 9 pm SEP at 10°N: 17° high at 9 pm OCT at 10°N: -3° high at 9 pm NOV at 10°N: -26° high at 9 pm DEC at 10°N: -46° high at 9 pm 0°
JAN at 0°: -48° high at 9 pm FEB at 0°: -41° high at 9 pm MAR at 0°: -26° high at 9 pm APR at 0°: -4° high at 9 pm MAY at 0°: 18° high at 9 pm JUN at 0°: 37° high at 9 pm JUL at 0°: 48° high at 9 pm AUG at 0°: 42° high at 9 pm SEP at 0°: 25° high at 9 pm OCT at 0°: 3° high at 9 pm NOV at 0°: -19° high at 9 pm DEC at 0°: -38° high at 9 pm 10°S
JAN at 10°S: -38° high at 9 pm FEB at 10°S: -32° high at 9 pm MAR at 10°S: -18° high at 9 pm APR at 10°S: 3° high at 9 pm MAY at 10°S: 25° high at 9 pm JUN at 10°S: 46° high at 9 pm JUL at 10°S: 57° high at 9 pm AUG at 10°S: 51° high at 9 pm SEP at 10°S: 32° high at 9 pm OCT at 10°S: 10° high at 9 pm NOV at 10°S: -12° high at 9 pm DEC at 10°S: -29° high at 9 pm 20°S
JAN at 20°S: -28° high at 9 pm FEB at 20°S: -23° high at 9 pm MAR at 20°S: -10° high at 9 pm APR at 20°S: 10° high at 9 pm MAY at 20°S: 31° high at 9 pm JUN at 20°S: 53° high at 9 pm JUL at 20°S: 67° high at 9 pm AUG at 20°S: 59° high at 9 pm SEP at 20°S: 38° high at 9 pm OCT at 20°S: 17° high at 9 pm NOV at 20°S: -4° high at 9 pm DEC at 20°S: -20° high at 9 pm 30°S
JAN at 30°S: -18° high at 9 pm FEB at 30°S: -14° high at 9 pm MAR at 30°S: -2° high at 9 pm APR at 30°S: 16° high at 9 pm MAY at 30°S: 37° high at 9 pm JUN at 30°S: 60° high at 9 pm JUL at 30°S: 77° high at 9 pm AUG at 30°S: 66° high at 9 pm SEP at 30°S: 44° high at 9 pm OCT at 30°S: 23° high at 9 pm NOV at 30°S: 3° high at 9 pm DEC at 30°S: -11° high at 9 pm 40°S
JAN at 40°S: -8° high at 9 pm FEB at 40°S: -4° high at 9 pm MAR at 40°S: 6° high at 9 pm APR at 40°S: 22° high at 9 pm MAY at 40°S: 42° high at 9 pm JUN at 40°S: 64° high at 9 pm JUL at 40°S: 85° high at 9 pm AUG at 40°S: 71° high at 9 pm SEP at 40°S: 49° high at 9 pm OCT at 40°S: 29° high at 9 pm NOV at 40°S: 11° high at 9 pm DEC at 40°S: -2° 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 48°N, and never sets south of 48°S.
RCW 113 is 5,070 light-years away
The light seen from RCW 113 tonight left it about 5,070 years ago. It ranks 20 of 47 by distance among the RCW nebulae with a measured distance. Distance source: Gaia DR3, Hunt & Reffert 2023.
Objects within 6° of RCW 113
C76, open cluster, 25′ RCW 111, emission nebula (H II region), 2.9° RCW 110, emission nebula (H II region), 3.1° RCW 117, emission nebula (H II region), 3.1° RCW 109, emission nebula (H II region), 3.7° RCW 118, emission nebula (H II region), 4.5° RCW 112, planetary nebula, 4.5° C75, open cluster, 5.4°
RCW 113 catalog data
Field Value
Type emission nebula (H II region) Constellation Scorpius Right ascension (J2000) 16h 53.2m Declination (J2000) -42° 12′ Apparent size 6° True size 531 light-years Distance 5,070 light-years (Gaia DR3, Hunt & Reffert 2023) Best month July Best with Telescope RCW number RCW 113
