LBN 549 is an emission nebula in Cassiopeia, 9,290 light-years away
LBN 549 is an emission nebula in the constellation Cassiopeia , 9,290 light-years away. Lynds rated it brightness class 3 of 6, moderately bright, and color class 3, reddish. It spans 30′ × 25′ of sky, about 81.1 light-years across. It is a telescope object under a dark sky; a nebula filter helps, 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 549 from Caph
Caph
LBN 549
CASSIOPEIA
LBN 549 lies 6.4° northwest of Caph , the magnitude 2.3 star. Three fingers held at arm's length cover about 5°.
LBN 549 is highest in the evening in October
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60°N
JAN at 60°N: 53° high at 9 pm FEB at 60°N: 43° high at 9 pm MAR at 60°N: 35° high at 9 pm APR at 60°N: 32° high at 9 pm MAY at 60°N: 32° high at 9 pm JUN at 60°N: 37° high at 9 pm JUL at 60°N: 45° high at 9 pm AUG at 60°N: 57° high at 9 pm SEP at 60°N: 70° high at 9 pm OCT at 60°N: 84° high at 9 pm NOV at 60°N: 81° high at 9 pm DEC at 60°N: 67° high at 9 pm 50°N
JAN at 50°N: 47° high at 9 pm FEB at 50°N: 34° high at 9 pm MAR at 50°N: 26° high at 9 pm APR at 50°N: 22° high at 9 pm MAY at 50°N: 22° high at 9 pm JUN at 50°N: 28° high at 9 pm JUL at 50°N: 37° high at 9 pm AUG at 50°N: 50° high at 9 pm SEP at 50°N: 65° high at 9 pm OCT at 50°N: 77° high at 9 pm NOV at 50°N: 75° high at 9 pm DEC at 50°N: 61° high at 9 pm 40°N
JAN at 40°N: 39° high at 9 pm FEB at 40°N: 26° high at 9 pm MAR at 40°N: 17° high at 9 pm APR at 40°N: 12° high at 9 pm MAY at 40°N: 12° high at 9 pm JUN at 40°N: 19° high at 9 pm JUL at 40°N: 29° high at 9 pm AUG at 40°N: 43° high at 9 pm SEP at 40°N: 57° high at 9 pm OCT at 40°N: 68° high at 9 pm NOV at 40°N: 66° high at 9 pm DEC at 40°N: 54° high at 9 pm 30°N
JAN at 30°N: 31° high at 9 pm FEB at 30°N: 17° high at 9 pm MAR at 30°N: 7° high at 9 pm APR at 30°N: 2° high at 9 pm MAY at 30°N: 2° high at 9 pm JUN at 30°N: 9° high at 9 pm JUL at 30°N: 21° high at 9 pm AUG at 30°N: 35° high at 9 pm SEP at 30°N: 49° high at 9 pm OCT at 30°N: 58° high at 9 pm NOV at 30°N: 56° high at 9 pm DEC at 30°N: 46° high at 9 pm 20°N
JAN at 20°N: 22° high at 9 pm FEB at 20°N: 8° high at 9 pm MAR at 20°N: -2° high at 9 pm APR at 20°N: -8° high at 9 pm MAY at 20°N: -8° high at 9 pm JUN at 20°N: -0° high at 9 pm JUL at 20°N: 12° high at 9 pm AUG at 20°N: 26° high at 9 pm SEP at 20°N: 40° high at 9 pm OCT at 20°N: 48° high at 9 pm NOV at 20°N: 47° high at 9 pm DEC at 20°N: 37° high at 9 pm 10°N
JAN at 10°N: 14° high at 9 pm FEB at 10°N: -1° high at 9 pm MAR at 10°N: -11° high at 9 pm APR at 10°N: -18° high at 9 pm MAY at 10°N: -17° high at 9 pm JUN at 10°N: -9° high at 9 pm JUL at 10°N: 3° high at 9 pm AUG at 10°N: 18° high at 9 pm SEP at 10°N: 31° high at 9 pm OCT at 10°N: 38° high at 9 pm NOV at 10°N: 37° high at 9 pm DEC at 10°N: 28° high at 9 pm 0°
JAN at 0°: 5° high at 9 pm FEB at 0°: -10° high at 9 pm MAR at 0°: -21° high at 9 pm APR at 0°: -28° high at 9 pm MAY at 0°: -27° high at 9 pm JUN at 0°: -19° high at 9 pm JUL at 0°: -6° high at 9 pm AUG at 0°: 9° high at 9 pm SEP at 0°: 21° high at 9 pm OCT at 0°: 28° high at 9 pm NOV at 0°: 27° high at 9 pm DEC at 0°: 19° high at 9 pm 10°S
JAN at 10°S: -4° high at 9 pm FEB at 10°S: -18° high at 9 pm MAR at 10°S: -30° high at 9 pm APR at 10°S: -38° high at 9 pm MAY at 10°S: -37° high at 9 pm JUN at 10°S: -28° high at 9 pm JUL at 10°S: -15° high at 9 pm AUG at 10°S: -0° high at 9 pm SEP at 10°S: 12° high at 9 pm OCT at 10°S: 18° high at 9 pm NOV at 10°S: 17° high at 9 pm DEC at 10°S: 9° high at 9 pm 20°S
JAN at 20°S: -13° high at 9 pm FEB at 20°S: -27° high at 9 pm MAR at 20°S: -39° high at 9 pm APR at 20°S: -48° high at 9 pm MAY at 20°S: -47° high at 9 pm JUN at 20°S: -37° high at 9 pm JUL at 20°S: -23° high at 9 pm AUG at 20°S: -9° high at 9 pm SEP at 20°S: 2° high at 9 pm OCT at 20°S: 8° high at 9 pm NOV at 20°S: 7° high at 9 pm DEC at 20°S: -0° high at 9 pm 30°S
JAN at 30°S: -21° high at 9 pm FEB at 30°S: -36° high at 9 pm MAR at 30°S: -48° high at 9 pm APR at 30°S: -58° high at 9 pm MAY at 30°S: -57° high at 9 pm JUN at 30°S: -46° high at 9 pm JUL at 30°S: -32° high at 9 pm AUG at 30°S: -18° high at 9 pm SEP at 30°S: -7° high at 9 pm OCT at 30°S: -2° high at 9 pm NOV at 30°S: -3° high at 9 pm DEC at 30°S: -9° high at 9 pm 40°S
JAN at 40°S: -30° high at 9 pm FEB at 40°S: -44° high at 9 pm MAR at 40°S: -57° high at 9 pm APR at 40°S: -68° high at 9 pm MAY at 40°S: -66° high at 9 pm JUN at 40°S: -54° high at 9 pm JUL at 40°S: -40° high at 9 pm AUG at 40°S: -26° high at 9 pm SEP at 40°S: -17° high at 9 pm OCT at 40°S: -12° high at 9 pm NOV at 40°S: -12° high at 9 pm DEC at 40°S: -19° 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 29°S, and never sets north of 29°N.
LBN 549 is 9,290 light-years away
The light seen from LBN 549 tonight left it about 9,290 years ago. Distance source: Sh2-162, Gaia DR3 parallax of BD+60 2522 (0.334 mas, +0.017 mas zero point).
29 Lynds bright nebulae and 32 Lynds dark nebulae lie within 5° of LBN 549
The nearest:
LBN 548 Bubble Nebula, emission nebula, 0′ LDN 1231, dark nebula, 15′ LBN 543 Northern Lagoon Nebula, emission nebula, 30′ LBN 544, emission nebula, 38′ LBN 547, emission nebula, 41′ LDN 1232, dark nebula, 41′ LBN 542 Northern Lagoon Nebula, emission nebula, 48′ LBN 540, emission nebula, 1.0° LDN 1225, dark nebula, 1.1° LDN 1229, dark nebula, 1.1°
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
NGC 7635 Bubble Nebula, H II region, 5′ M52 Messier 52, open cluster, 41′ NGC 7538, cluster with nebula, 51′ NGC 7510, open cluster, 1.3° IC 1470, H II region, 2.1°
LBN 549 catalog data
Field Value
Designations LBN 549 Constellation Cassiopeia Type emission nebula Right ascension (J2000) 23h 20.2m Declination (J2000) +61° 11′ Galactic longitude and latitude 112.16°, +0.23° Brightness class 3 of 6 (moderately bright) Color class 3 of 4 (reddish) Apparent size 30′ × 25′ True size 81.1 light-years Distance 9,290 light-years (Sh2-162, Gaia DR3 parallax of BD+60 2522 (0.334 mas, +0.017 mas zero point)) Best with Telescope Best month October Catalog page LBN 501 to 1000
