LBN 558 is an emission nebula in Cepheus, 1,100 light-years away
LBN 558 is an emission nebula in the constellation Cepheus , 1,100 light-years away. Lynds rated it brightness class 6 of 6, the faintest, and color class 4, the reddest, strongest on the red print. It spans 2.3° × 30′ of sky, about 43.2 light-years across. It is a faint target for long-exposure photography, and it is highest in the evening sky in October.
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 558 from Errai
Errai
LBN 558
CEPHEUS
LBN 558 lies 5.2° west of Errai , the magnitude 3.2 star. Three fingers held at arm's length cover about 5°.
LBN 558 is highest in the evening in October
JAN
FEB
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APR
MAY
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JUL
AUG
SEP
OCT
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DEC
60°N
JAN at 60°N: 56° high at 9 pm FEB at 60°N: 50° high at 9 pm MAR at 60°N: 46° high at 9 pm APR at 60°N: 45° high at 9 pm MAY at 60°N: 47° high at 9 pm JUN at 60°N: 51° high at 9 pm JUL at 60°N: 58° high at 9 pm AUG at 60°N: 65° high at 9 pm SEP at 60°N: 72° high at 9 pm OCT at 60°N: 75° high at 9 pm NOV at 60°N: 71° high at 9 pm DEC at 60°N: 63° high at 9 pm 50°N
JAN at 50°N: 47° high at 9 pm FEB at 50°N: 40° high at 9 pm MAR at 50°N: 37° high at 9 pm APR at 50°N: 35° high at 9 pm MAY at 50°N: 37° high at 9 pm JUN at 50°N: 42° high at 9 pm JUL at 50°N: 48° high at 9 pm AUG at 50°N: 56° high at 9 pm SEP at 50°N: 63° high at 9 pm OCT at 50°N: 65° high at 9 pm NOV at 50°N: 61° high at 9 pm DEC at 50°N: 54° high at 9 pm 40°N
JAN at 40°N: 37° high at 9 pm FEB at 40°N: 31° high at 9 pm MAR at 40°N: 27° high at 9 pm APR at 40°N: 25° high at 9 pm MAY at 40°N: 27° high at 9 pm JUN at 40°N: 32° high at 9 pm JUL at 40°N: 39° high at 9 pm AUG at 40°N: 47° high at 9 pm SEP at 40°N: 53° high at 9 pm OCT at 40°N: 55° high at 9 pm NOV at 40°N: 52° high at 9 pm DEC at 40°N: 45° high at 9 pm 30°N
JAN at 30°N: 28° high at 9 pm FEB at 30°N: 21° high at 9 pm MAR at 30°N: 17° high at 9 pm APR at 30°N: 15° high at 9 pm MAY at 30°N: 17° high at 9 pm JUN at 30°N: 23° high at 9 pm JUL at 30°N: 30° high at 9 pm AUG at 30°N: 37° high at 9 pm SEP at 30°N: 43° high at 9 pm OCT at 30°N: 45° high at 9 pm NOV at 30°N: 42° high at 9 pm DEC at 30°N: 36° high at 9 pm 20°N
JAN at 20°N: 18° high at 9 pm FEB at 20°N: 11° high at 9 pm MAR at 20°N: 7° high at 9 pm APR at 20°N: 5° high at 9 pm MAY at 20°N: 7° high at 9 pm JUN at 20°N: 13° high at 9 pm JUL at 20°N: 20° high at 9 pm AUG at 20°N: 28° high at 9 pm SEP at 20°N: 33° high at 9 pm OCT at 20°N: 35° high at 9 pm NOV at 20°N: 32° high at 9 pm DEC at 20°N: 26° high at 9 pm 10°N
JAN at 10°N: 9° high at 9 pm FEB at 10°N: 1° high at 9 pm MAR at 10°N: -3° high at 9 pm APR at 10°N: -5° high at 9 pm MAY at 10°N: -2° high at 9 pm JUN at 10°N: 3° high at 9 pm JUL at 10°N: 10° high at 9 pm AUG at 10°N: 18° high at 9 pm SEP at 10°N: 23° high at 9 pm OCT at 10°N: 25° high at 9 pm NOV at 10°N: 22° high at 9 pm DEC at 10°N: 16° high at 9 pm 0°
JAN at 0°: -1° high at 9 pm FEB at 0°: -8° high at 9 pm MAR at 0°: -13° high at 9 pm APR at 0°: -15° high at 9 pm MAY at 0°: -12° high at 9 pm JUN at 0°: -7° high at 9 pm JUL at 0°: 1° high at 9 pm AUG at 0°: 8° high at 9 pm SEP at 0°: 13° high at 9 pm OCT at 0°: 15° high at 9 pm NOV at 0°: 12° high at 9 pm DEC at 0°: 7° high at 9 pm 10°S
JAN at 10°S: -11° high at 9 pm FEB at 10°S: -18° high at 9 pm MAR at 10°S: -23° high at 9 pm APR at 10°S: -25° high at 9 pm MAY at 10°S: -22° high at 9 pm JUN at 10°S: -16° high at 9 pm JUL at 10°S: -9° high at 9 pm AUG at 10°S: -2° high at 9 pm SEP at 10°S: 3° high at 9 pm OCT at 10°S: 5° high at 9 pm NOV at 10°S: 2° high at 9 pm DEC at 10°S: -3° high at 9 pm 20°S
JAN at 20°S: -20° high at 9 pm FEB at 20°S: -28° high at 9 pm MAR at 20°S: -33° high at 9 pm APR at 20°S: -35° high at 9 pm MAY at 20°S: -32° high at 9 pm JUN at 20°S: -26° high at 9 pm JUL at 20°S: -19° high at 9 pm AUG at 20°S: -11° high at 9 pm SEP at 20°S: -7° high at 9 pm OCT at 20°S: -5° high at 9 pm NOV at 20°S: -8° high at 9 pm DEC at 20°S: -13° high at 9 pm 30°S
JAN at 30°S: -30° high at 9 pm FEB at 30°S: -38° high at 9 pm MAR at 30°S: -43° high at 9 pm APR at 30°S: -45° high at 9 pm MAY at 30°S: -42° high at 9 pm JUN at 30°S: -36° high at 9 pm JUL at 30°S: -28° high at 9 pm AUG at 30°S: -21° high at 9 pm SEP at 30°S: -17° high at 9 pm OCT at 30°S: -15° high at 9 pm NOV at 30°S: -17° high at 9 pm DEC at 30°S: -23° high at 9 pm 40°S
JAN at 40°S: -40° high at 9 pm FEB at 40°S: -47° high at 9 pm MAR at 40°S: -53° high at 9 pm APR at 40°S: -55° high at 9 pm MAY at 40°S: -52° high at 9 pm JUN at 40°S: -45° high at 9 pm JUL at 40°S: -38° high at 9 pm AUG at 40°S: -31° high at 9 pm SEP at 40°S: -27° high at 9 pm OCT at 40°S: -25° high at 9 pm NOV at 40°S: -27° high at 9 pm DEC at 40°S: -32° 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 15°S, and never sets north of 15°N.
LBN 558 is 1,100 light-years away
The light seen from LBN 558 tonight left it about 1,100 years ago, around 926 AD. Distance source: LDN 1247, Cepheus, Gaia DR2 dust, Zucker et al. 2020 (nearest sightline 0.7 deg away, 336 pc).
10 Lynds bright nebulae and 11 Lynds dark nebulae lie within 5° of LBN 558
The nearest:
LDN 1247, dark nebula, 0′ LDN 1243, dark nebula, 39′ LDN 1251, dark nebula, 58′ LDN 1235 Shark Nebula, dark nebula, 1.9° LBN 546, reflection nebula, 2.0° LDN 1242, dark nebula, 2.1° LDN 1241, dark nebula, 2.4° LBN 541, reflection nebula, 2.5° LBN 535, emission nebula, 2.7° LBN 567, emission nebula, 2.9°
LBN 558 catalog data
Field Value
Designations LBN 558 Constellation Cepheus Type emission nebula Right ascension (J2000) 22h 20.7m Declination (J2000) +75° 15′ Galactic longitude and latitude 113.65°, +15.16° Brightness class 6 of 6 (the faintest) Color class 4 of 4 (the reddest, strongest on the red print) Apparent size 2.3° × 30′ True size 43.2 light-years Distance 1,100 light-years (LDN 1247, Cepheus, Gaia DR2 dust, Zucker et al. 2020 (nearest sightline 0.7 deg away, 336 pc)) Best with Camera Best month October Catalog page LBN 501 to 1000
