RCW 128 is an emission nebula (H II region) in Scorpius
RCW 128 is an emission nebula (H II region) in the constellation Scorpius . spans 10′. 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 128 from Shaula
Shaula
RCW 128
SCORPIUS
RCW 128 lies 2.1° west of Shaula , the magnitude 1.6 star. That is within one binocular field.
RCW 128 is highest in the evening in July
JAN
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60°N
JAN at 60°N: -65° high at 9 pm FEB at 60°N: -63° high at 9 pm MAR at 60°N: -52° high at 9 pm APR at 60°N: -37° high at 9 pm MAY at 60°N: -23° high at 9 pm JUN at 60°N: -12° high at 9 pm JUL at 60°N: -7° high at 9 pm AUG at 60°N: -7° high at 9 pm SEP at 60°N: -14° high at 9 pm OCT at 60°N: -25° high at 9 pm NOV at 60°N: -40° high at 9 pm DEC at 60°N: -54° high at 9 pm 50°N
JAN at 50°N: -74° high at 9 pm FEB at 50°N: -71° high at 9 pm MAR at 50°N: -54° high at 9 pm APR at 50°N: -35° high at 9 pm MAY at 50°N: -18° high at 9 pm JUN at 50°N: -4° high at 9 pm JUL at 50°N: 3° high at 9 pm AUG at 50°N: 2° high at 9 pm SEP at 50°N: -6° high at 9 pm OCT at 50°N: -20° high at 9 pm NOV at 50°N: -38° high at 9 pm DEC at 50°N: -57° high at 9 pm 40°N
JAN at 40°N: -80° high at 9 pm FEB at 40°N: -75° high at 9 pm MAR at 40°N: -53° high at 9 pm APR at 40°N: -31° high at 9 pm MAY at 40°N: -12° high at 9 pm JUN at 40°N: 4° high at 9 pm JUL at 40°N: 13° high at 9 pm AUG at 40°N: 12° high at 9 pm SEP at 40°N: 2° high at 9 pm OCT at 40°N: -14° high at 9 pm NOV at 40°N: -35° high at 9 pm DEC at 40°N: -57° high at 9 pm 30°N
JAN at 30°N: -79° high at 9 pm FEB at 30°N: -73° high at 9 pm MAR at 30°N: -51° high at 9 pm APR at 30°N: -27° high at 9 pm MAY at 30°N: -5° high at 9 pm JUN at 30°N: 13° high at 9 pm JUL at 30°N: 23° high at 9 pm AUG at 30°N: 22° high at 9 pm SEP at 30°N: 10° high at 9 pm OCT at 30°N: -8° high at 9 pm NOV at 30°N: -31° high at 9 pm DEC at 30°N: -54° high at 9 pm 20°N
JAN at 20°N: -71° high at 9 pm FEB at 20°N: -67° high at 9 pm MAR at 20°N: -46° high at 9 pm APR at 20°N: -22° high at 9 pm MAY at 20°N: 1° high at 9 pm JUN at 20°N: 21° high at 9 pm JUL at 20°N: 32° high at 9 pm AUG at 20°N: 31° high at 9 pm SEP at 20°N: 18° high at 9 pm OCT at 20°N: -2° high at 9 pm NOV at 20°N: -26° high at 9 pm DEC at 20°N: -50° high at 9 pm 10°N
JAN at 10°N: -62° high at 9 pm FEB at 10°N: -58° high at 9 pm MAR at 10°N: -40° high at 9 pm APR at 10°N: -16° high at 9 pm MAY at 10°N: 7° high at 9 pm JUN at 10°N: 29° high at 9 pm JUL at 10°N: 42° high at 9 pm AUG at 10°N: 41° high at 9 pm SEP at 10°N: 25° high at 9 pm OCT at 10°N: 4° high at 9 pm NOV at 10°N: -21° high at 9 pm DEC at 10°N: -44° high at 9 pm 0°
JAN at 0°: -52° high at 9 pm FEB at 0°: -50° high at 9 pm MAR at 0°: -33° high at 9 pm APR at 0°: -10° high at 9 pm MAY at 0°: 14° high at 9 pm JUN at 0°: 36° high at 9 pm JUL at 0°: 52° high at 9 pm AUG at 0°: 50° high at 9 pm SEP at 0°: 33° high at 9 pm OCT at 0°: 10° high at 9 pm NOV at 0°: -15° high at 9 pm DEC at 0°: -37° high at 9 pm 10°S
JAN at 10°S: -42° high at 9 pm FEB at 10°S: -40° high at 9 pm MAR at 10°S: -26° high at 9 pm APR at 10°S: -4° high at 9 pm MAY at 10°S: 19° high at 9 pm JUN at 10°S: 43° high at 9 pm JUL at 10°S: 61° high at 9 pm AUG at 10°S: 59° high at 9 pm SEP at 10°S: 39° high at 9 pm OCT at 10°S: 16° high at 9 pm NOV at 10°S: -8° high at 9 pm DEC at 10°S: -29° high at 9 pm 20°S
JAN at 20°S: -33° high at 9 pm FEB at 20°S: -31° high at 9 pm MAR at 20°S: -18° high at 9 pm APR at 20°S: 2° high at 9 pm MAY at 20°S: 25° high at 9 pm JUN at 20°S: 50° high at 9 pm JUL at 20°S: 70° high at 9 pm AUG at 20°S: 68° high at 9 pm SEP at 20°S: 45° high at 9 pm OCT at 20°S: 21° high at 9 pm NOV at 20°S: -2° high at 9 pm DEC at 20°S: -21° high at 9 pm 30°S
JAN at 30°S: -23° high at 9 pm FEB at 30°S: -21° high at 9 pm MAR at 30°S: -10° high at 9 pm APR at 30°S: 8° high at 9 pm MAY at 30°S: 30° high at 9 pm JUN at 30°S: 54° high at 9 pm JUL at 30°S: 77° high at 9 pm AUG at 30°S: 74° high at 9 pm SEP at 30°S: 50° high at 9 pm OCT at 30°S: 26° high at 9 pm NOV at 30°S: 4° high at 9 pm DEC at 30°S: -13° high at 9 pm 40°S
JAN at 40°S: -13° high at 9 pm FEB at 40°S: -12° high at 9 pm MAR at 40°S: -2° high at 9 pm APR at 40°S: 14° high at 9 pm MAY at 40°S: 34° high at 9 pm JUN at 40°S: 57° high at 9 pm JUL at 40°S: 79° high at 9 pm AUG at 40°S: 76° high at 9 pm SEP at 40°S: 52° high at 9 pm OCT at 40°S: 31° high at 9 pm NOV at 40°S: 11° high at 9 pm DEC at 40°S: -4° 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 54°N, and never sets south of 54°S.
The distance to RCW 128 is not well measured
Objects within 6° of RCW 128
RCW 126, emission nebula (H II region), 1.4° RCW 125, emission nebula (H II region), 1.4° C69 Bug Nebula, planetary nebula, 2.2° RCW 123 Cheerio Nebula, planetary nebula, 2.2° RCW 122, emission nebula (H II region), 2.8° RCW 118, emission nebula (H II region), 4.1° RCW 132, emission nebula and cluster, 4.3° RCW 133, emission nebula (H II region), 4.8°
RCW 128 catalog data
Field Value
Type emission nebula (H II region) Constellation Scorpius Right ascension (J2000) 17h 23.8m Declination (J2000) -36° 18′ Apparent size 10′ Best month July Best with Telescope RCW number RCW 128
