LBN 233 is an emission nebula in Cygnus
LBN 233 is an emission nebula in the constellation Cygnus . Lynds rated it brightness class 4 of 6, moderately faint, and color class 3, reddish. It spans 2.7° × 30′ of sky. It is a faint target for long-exposure photography, and it is highest in the evening sky in September.
Emission nebula: a cloud of gas, mostly hydrogen, made to glow by the ultraviolet light of hot young stars. It shines in the red light of hydrogen-alpha, and a nebula filter helps it stand out from the sky.
Finding LBN 233 from Sadr
Sadr
LBN 233
CYGNUS
LBN 233 lies 2.8° northwest of Sadr , the magnitude 2.2 star. Three fingers held at arm's length cover about 5°.
LBN 233 is highest in the evening in September
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
60°N
JAN at 60°N: 20° high at 9 pm FEB at 60°N: 13° high at 9 pm MAR at 60°N: 11° high at 9 pm APR at 60°N: 16° high at 9 pm MAY at 60°N: 25° high at 9 pm JUN at 60°N: 38° high at 9 pm JUL at 60°N: 52° high at 9 pm AUG at 60°N: 66° high at 9 pm SEP at 60°N: 71° high at 9 pm OCT at 60°N: 61° high at 9 pm NOV at 60°N: 46° high at 9 pm DEC at 60°N: 32° high at 9 pm 50°N
JAN at 50°N: 12° high at 9 pm FEB at 50°N: 3° high at 9 pm MAR at 50°N: 1° high at 9 pm APR at 50°N: 7° high at 9 pm MAY at 50°N: 18° high at 9 pm JUN at 50°N: 34° high at 9 pm JUL at 50°N: 52° high at 9 pm AUG at 50°N: 71° high at 9 pm SEP at 50°N: 80° high at 9 pm OCT at 50°N: 63° high at 9 pm NOV at 50°N: 44° high at 9 pm DEC at 50°N: 27° high at 9 pm 40°N
JAN at 40°N: 4° high at 9 pm FEB at 40°N: -6° high at 9 pm MAR at 40°N: -9° high at 9 pm APR at 40°N: -2° high at 9 pm MAY at 40°N: 11° high at 9 pm JUN at 40°N: 29° high at 9 pm JUL at 40°N: 50° high at 9 pm AUG at 40°N: 72° high at 9 pm SEP at 40°N: 85° high at 9 pm OCT at 40°N: 62° high at 9 pm NOV at 40°N: 40° high at 9 pm DEC at 40°N: 21° high at 9 pm 30°N
JAN at 30°N: -4° high at 9 pm FEB at 30°N: -16° high at 9 pm MAR at 30°N: -19° high at 9 pm APR at 30°N: -11° high at 9 pm MAY at 30°N: 4° high at 9 pm JUN at 30°N: 24° high at 9 pm JUL at 30°N: 45° high at 9 pm AUG at 30°N: 68° high at 9 pm SEP at 30°N: 77° high at 9 pm OCT at 30°N: 59° high at 9 pm NOV at 30°N: 36° high at 9 pm DEC at 30°N: 15° high at 9 pm 20°N
JAN at 20°N: -12° high at 9 pm FEB at 20°N: -25° high at 9 pm MAR at 20°N: -28° high at 9 pm APR at 20°N: -20° high at 9 pm MAY at 20°N: -4° high at 9 pm JUN at 20°N: 18° high at 9 pm JUL at 20°N: 40° high at 9 pm AUG at 20°N: 61° high at 9 pm SEP at 20°N: 68° high at 9 pm OCT at 20°N: 52° high at 9 pm NOV at 20°N: 30° high at 9 pm DEC at 20°N: 8° high at 9 pm 10°N
JAN at 10°N: -20° high at 9 pm FEB at 10°N: -35° high at 9 pm MAR at 10°N: -38° high at 9 pm APR at 10°N: -29° high at 9 pm MAY at 10°N: -11° high at 9 pm JUN at 10°N: 11° high at 9 pm JUL at 10°N: 33° high at 9 pm AUG at 10°N: 52° high at 9 pm SEP at 10°N: 58° high at 9 pm OCT at 10°N: 45° high at 9 pm NOV at 10°N: 24° high at 9 pm DEC at 10°N: 2° high at 9 pm 0°
JAN at 0°: -27° high at 9 pm FEB at 0°: -44° high at 9 pm MAR at 0°: -48° high at 9 pm APR at 0°: -37° high at 9 pm MAY at 0°: -18° high at 9 pm JUN at 0°: 5° high at 9 pm JUL at 0°: 26° high at 9 pm AUG at 0°: 43° high at 9 pm SEP at 0°: 48° high at 9 pm OCT at 0°: 37° high at 9 pm NOV at 0°: 17° high at 9 pm DEC at 0°: -5° high at 9 pm 10°S
JAN at 10°S: -34° high at 9 pm FEB at 10°S: -53° high at 9 pm MAR at 10°S: -58° high at 9 pm APR at 10°S: -45° high at 9 pm MAY at 10°S: -25° high at 9 pm JUN at 10°S: -2° high at 9 pm JUL at 10°S: 19° high at 9 pm AUG at 10°S: 34° high at 9 pm SEP at 10°S: 38° high at 9 pm OCT at 10°S: 29° high at 9 pm NOV at 10°S: 10° high at 9 pm DEC at 10°S: -12° high at 9 pm 20°S
JAN at 20°S: -41° high at 9 pm FEB at 20°S: -62° high at 9 pm MAR at 20°S: -68° high at 9 pm APR at 20°S: -53° high at 9 pm MAY at 20°S: -31° high at 9 pm JUN at 20°S: -9° high at 9 pm JUL at 20°S: 11° high at 9 pm AUG at 20°S: 25° high at 9 pm SEP at 20°S: 28° high at 9 pm OCT at 20°S: 20° high at 9 pm NOV at 20°S: 3° high at 9 pm DEC at 20°S: -18° high at 9 pm 30°S
JAN at 30°S: -46° high at 9 pm FEB at 30°S: -69° high at 9 pm MAR at 30°S: -78° high at 9 pm APR at 30°S: -59° high at 9 pm MAY at 30°S: -37° high at 9 pm JUN at 30°S: -15° high at 9 pm JUL at 30°S: 3° high at 9 pm AUG at 30°S: 15° high at 9 pm SEP at 30°S: 18° high at 9 pm OCT at 30°S: 11° high at 9 pm NOV at 30°S: -4° high at 9 pm DEC at 30°S: -24° high at 9 pm 40°S
JAN at 40°S: -51° high at 9 pm FEB at 40°S: -73° high at 9 pm MAR at 40°S: -86° high at 9 pm APR at 40°S: -63° high at 9 pm MAY at 40°S: -41° high at 9 pm JUN at 40°S: -21° high at 9 pm JUL at 40°S: -5° high at 9 pm AUG at 40°S: 6° high at 9 pm SEP at 40°S: 8° high at 9 pm OCT at 40°S: 2° high at 9 pm NOV at 40°S: -12° high at 9 pm DEC at 40°S: -29° 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 49°S, and never sets north of 49°N.
The distance to LBN 233 is not well measured
No reliable distance has been measured for it yet.
86 Lynds bright nebulae and 40 Lynds dark nebulae lie within 5° of LBN 233
The nearest:
LBN 227, emission nebula, 24′ LDN 884, dark nebula, 35′ LDN 878, dark nebula, 38′ LBN 243, emission nebula, 46′ LBN 222, emission nebula, 51′ LBN 239, emission nebula, 57′ LDN 891, dark nebula, 1.2° LDN 893, dark nebula, 1.2° LBN 238, emission nebula, 1.2° LBN 217, emission nebula, 1.3°
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
IC 1318 Sadr Region, star, 2.8° NGC 6910, open cluster, 2.8° NGC 6866, open cluster, 3.0° NGC 6888 Crescent Nebula, H II region, 3.0° IC 4996, open cluster, 4.0° M29 Cooling Tower, open cluster, 4.0°
LBN 233 catalog data
Field Value
Designations LBN 233 Constellation Cygnus Type emission nebula Right ascension (J2000) 20h 08.7m Declination (J2000) +41° 18′ Galactic longitude and latitude 77.60°, +4.58° Brightness class 4 of 6 (moderately faint) Color class 3 of 4 (reddish) Apparent size 2.7° × 30′ Best with Camera Best month September Catalog page LBN 1 to 500
