LBN 475 is an emission nebula in Cepheus, 1,110 light-years away
LBN 475 is an emission nebula in the constellation Cepheus , 1,110 light-years away. Lynds rated it brightness class 6 of 6, the faintest, and color class 3, reddish. It spans 2.5° × 50′ of sky, about 48.4 light-years across. 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 475 from Alderamin
Alderamin
LBN 475
CEPHEUS
LBN 475 lies 5.3° northwest of Alderamin , the magnitude 2.5 star. Three fingers held at arm's length cover about 5°.
LBN 475 is highest in the evening in September
JAN
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APR
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SEP
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60°N
JAN at 60°N: 46° high at 9 pm FEB at 60°N: 40° high at 9 pm MAR at 60°N: 37° high at 9 pm APR at 60°N: 39° high at 9 pm MAY at 60°N: 43° high at 9 pm JUN at 60°N: 51° high at 9 pm JUL at 60°N: 61° high at 9 pm AUG at 60°N: 73° high at 9 pm SEP at 60°N: 82° high at 9 pm OCT at 60°N: 77° high at 9 pm NOV at 60°N: 65° high at 9 pm DEC at 60°N: 55° high at 9 pm 50°N
JAN at 50°N: 37° high at 9 pm FEB at 50°N: 30° high at 9 pm MAR at 50°N: 27° high at 9 pm APR at 50°N: 29° high at 9 pm MAY at 50°N: 34° high at 9 pm JUN at 50°N: 43° high at 9 pm JUL at 50°N: 54° high at 9 pm AUG at 50°N: 65° high at 9 pm SEP at 50°N: 72° high at 9 pm OCT at 50°N: 69° high at 9 pm NOV at 50°N: 58° high at 9 pm DEC at 50°N: 47° high at 9 pm 40°N
JAN at 40°N: 28° high at 9 pm FEB at 40°N: 20° high at 9 pm MAR at 40°N: 17° high at 9 pm APR at 40°N: 19° high at 9 pm MAY at 40°N: 25° high at 9 pm JUN at 40°N: 34° high at 9 pm JUL at 40°N: 46° high at 9 pm AUG at 40°N: 56° high at 9 pm SEP at 40°N: 63° high at 9 pm OCT at 40°N: 59° high at 9 pm NOV at 40°N: 50° high at 9 pm DEC at 40°N: 38° high at 9 pm 30°N
JAN at 30°N: 18° high at 9 pm FEB at 30°N: 11° high at 9 pm MAR at 30°N: 7° high at 9 pm APR at 30°N: 9° high at 9 pm MAY at 30°N: 15° high at 9 pm JUN at 30°N: 25° high at 9 pm JUL at 30°N: 37° high at 9 pm AUG at 30°N: 47° high at 9 pm SEP at 30°N: 53° high at 9 pm OCT at 30°N: 50° high at 9 pm NOV at 30°N: 41° high at 9 pm DEC at 30°N: 29° high at 9 pm 20°N
JAN at 20°N: 9° high at 9 pm FEB at 20°N: 1° high at 9 pm MAR at 20°N: -3° high at 9 pm APR at 20°N: -1° high at 9 pm MAY at 20°N: 6° high at 9 pm JUN at 20°N: 16° high at 9 pm JUL at 20°N: 28° high at 9 pm AUG at 20°N: 38° high at 9 pm SEP at 20°N: 43° high at 9 pm OCT at 20°N: 40° high at 9 pm NOV at 20°N: 31° high at 9 pm DEC at 20°N: 20° high at 9 pm 10°N
JAN at 10°N: -0° high at 9 pm FEB at 10°N: -9° high at 9 pm MAR at 10°N: -13° high at 9 pm APR at 10°N: -11° high at 9 pm MAY at 10°N: -4° high at 9 pm JUN at 10°N: 7° high at 9 pm JUL at 10°N: 18° high at 9 pm AUG at 10°N: 28° high at 9 pm SEP at 10°N: 33° high at 9 pm OCT at 10°N: 30° high at 9 pm NOV at 10°N: 22° high at 9 pm DEC at 10°N: 11° high at 9 pm 0°
JAN at 0°: -10° high at 9 pm FEB at 0°: -19° high at 9 pm MAR at 0°: -23° high at 9 pm APR at 0°: -21° high at 9 pm MAY at 0°: -13° high at 9 pm JUN at 0°: -2° high at 9 pm JUL at 0°: 9° high at 9 pm AUG at 0°: 18° high at 9 pm SEP at 0°: 23° high at 9 pm OCT at 0°: 20° high at 9 pm NOV at 0°: 13° high at 9 pm DEC at 0°: 2° high at 9 pm 10°S
JAN at 10°S: -19° high at 9 pm FEB at 10°S: -28° high at 9 pm MAR at 10°S: -33° high at 9 pm APR at 10°S: -30° high at 9 pm MAY at 10°S: -23° high at 9 pm JUN at 10°S: -11° high at 9 pm JUL at 10°S: -0° high at 9 pm AUG at 10°S: 9° high at 9 pm SEP at 10°S: 13° high at 9 pm OCT at 10°S: 11° high at 9 pm NOV at 10°S: 3° high at 9 pm DEC at 10°S: -7° high at 9 pm 20°S
JAN at 20°S: -28° high at 9 pm FEB at 20°S: -38° high at 9 pm MAR at 20°S: -42° high at 9 pm APR at 20°S: -40° high at 9 pm MAY at 20°S: -32° high at 9 pm JUN at 20°S: -21° high at 9 pm JUL at 20°S: -10° high at 9 pm AUG at 20°S: -1° high at 9 pm SEP at 20°S: 3° high at 9 pm OCT at 20°S: 1° high at 9 pm NOV at 20°S: -6° high at 9 pm DEC at 20°S: -16° high at 9 pm 30°S
JAN at 30°S: -37° high at 9 pm FEB at 30°S: -48° high at 9 pm MAR at 30°S: -52° high at 9 pm APR at 30°S: -50° high at 9 pm MAY at 30°S: -41° high at 9 pm JUN at 30°S: -30° high at 9 pm JUL at 30°S: -19° high at 9 pm AUG at 30°S: -11° high at 9 pm SEP at 30°S: -7° high at 9 pm OCT at 30°S: -9° high at 9 pm NOV at 30°S: -16° high at 9 pm DEC at 30°S: -26° high at 9 pm 40°S
JAN at 40°S: -46° high at 9 pm FEB at 40°S: -57° high at 9 pm MAR at 40°S: -62° high at 9 pm APR at 40°S: -60° high at 9 pm MAY at 40°S: -50° high at 9 pm JUN at 40°S: -38° high at 9 pm JUL at 40°S: -28° high at 9 pm AUG at 40°S: -21° high at 9 pm SEP at 40°S: -17° high at 9 pm OCT at 40°S: -19° high at 9 pm NOV at 40°S: -25° high at 9 pm DEC at 40°S: -35° 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 23°S, and never sets north of 23°N.
LBN 475 is 1,110 light-years away
The light seen from LBN 475 tonight left it about 1,110 years ago, around 916 AD. Distance source: NGC 7023, Gaia DR3, Hunt and Reffert 2023.
9 Lynds bright nebulae and 23 Lynds dark nebulae lie within 5° of LBN 475
The nearest:
LDN 1168, dark nebula, 17′ LDN 1170, dark nebula, 38′ LDN 1172, dark nebula, 46′ LDN 1167, dark nebula, 50′ LBN 483, emission nebula, 55′ LDN 1173, dark nebula, 56′ LDN 1171, dark nebula, 60′ LBN 487 Iris Nebula, reflection nebula, 1.0° LDN 1174, dark nebula, 1.1° LDN 1158, dark nebula, 1.1°
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
NGC 7023 Iris Nebula, nebula, 60′ NGC 6951, mixed spiral galaxy, 2.2° NGC 7129, cluster with nebula, 4.8° NGC 7142, open cluster, 5.2° NGC 6869, lenticular galaxy, 5.5° NGC 6939, open cluster, 7.2°
LBN 475 catalog data
Field Value
Designations LBN 475 Constellation Cepheus Type emission nebula Right ascension (J2000) 20h 55.7m Declination (J2000) +67° 21′ Galactic longitude and latitude 103.04°, +14.12° Brightness class 6 of 6 (the faintest) Color class 3 of 4 (reddish) Apparent size 2.5° × 50′ True size 48.4 light-years Distance 1,110 light-years (NGC 7023, Gaia DR3, Hunt and Reffert 2023) Best with Camera Best month September Catalog page LBN 1 to 500
