LBN 648 is an emission nebula in Cassiopeia, 6,590 light-years away
LBN 648 is an emission nebula in the constellation Cassiopeia , 6,590 light-years away. Lynds rated it brightness class 6 of 6, the faintest, and color class 3, reddish. It spans 2° × 1° of sky, about 230 light-years across. It is a faint target for long-exposure photography, and it is highest in the evening sky in December.
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 648 from Segin
Segin
LBN 648
CASSIOPEIA
LBN 648 lies 4.2° east of Segin , the magnitude 3.4 star. Three fingers held at arm's length cover about 5°.
LBN 648 is highest in the evening in December
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: 74° high at 9 pm FEB at 60°N: 61° high at 9 pm MAR at 60°N: 50° high at 9 pm APR at 60°N: 40° high at 9 pm MAY at 60°N: 34° high at 9 pm JUN at 60°N: 32° high at 9 pm JUL at 60°N: 34° high at 9 pm AUG at 60°N: 41° high at 9 pm SEP at 60°N: 51° high at 9 pm OCT at 60°N: 63° high at 9 pm NOV at 60°N: 76° high at 9 pm DEC at 60°N: 88° high at 9 pm 50°N
JAN at 50°N: 69° high at 9 pm FEB at 50°N: 55° high at 9 pm MAR at 50°N: 42° high at 9 pm APR at 50°N: 32° high at 9 pm MAY at 50°N: 25° high at 9 pm JUN at 50°N: 22° high at 9 pm JUL at 50°N: 25° high at 9 pm AUG at 50°N: 32° high at 9 pm SEP at 50°N: 43° high at 9 pm OCT at 50°N: 56° high at 9 pm NOV at 50°N: 70° high at 9 pm DEC at 50°N: 78° high at 9 pm 40°N
JAN at 40°N: 61° high at 9 pm FEB at 40°N: 47° high at 9 pm MAR at 40°N: 34° high at 9 pm APR at 40°N: 23° high at 9 pm MAY at 40°N: 15° high at 9 pm JUN at 40°N: 12° high at 9 pm JUL at 40°N: 15° high at 9 pm AUG at 40°N: 23° high at 9 pm SEP at 40°N: 35° high at 9 pm OCT at 40°N: 49° high at 9 pm NOV at 40°N: 62° high at 9 pm DEC at 40°N: 68° high at 9 pm 30°N
JAN at 30°N: 52° high at 9 pm FEB at 30°N: 39° high at 9 pm MAR at 30°N: 26° high at 9 pm APR at 30°N: 14° high at 9 pm MAY at 30°N: 5° high at 9 pm JUN at 30°N: 2° high at 9 pm JUL at 30°N: 5° high at 9 pm AUG at 30°N: 14° high at 9 pm SEP at 30°N: 27° high at 9 pm OCT at 30°N: 41° high at 9 pm NOV at 30°N: 53° high at 9 pm DEC at 30°N: 58° high at 9 pm 20°N
JAN at 20°N: 42° high at 9 pm FEB at 20°N: 30° high at 9 pm MAR at 20°N: 17° high at 9 pm APR at 20°N: 4° high at 9 pm MAY at 20°N: -5° high at 9 pm JUN at 20°N: -8° high at 9 pm JUL at 20°N: -4° high at 9 pm AUG at 20°N: 5° high at 9 pm SEP at 20°N: 18° high at 9 pm OCT at 20°N: 32° high at 9 pm NOV at 20°N: 44° high at 9 pm DEC at 20°N: 48° high at 9 pm 10°N
JAN at 10°N: 33° high at 9 pm FEB at 10°N: 21° high at 9 pm MAR at 10°N: 9° high at 9 pm APR at 10°N: -5° high at 9 pm MAY at 10°N: -14° high at 9 pm JUN at 10°N: -18° high at 9 pm JUL at 10°N: -14° high at 9 pm AUG at 10°N: -4° high at 9 pm SEP at 10°N: 10° high at 9 pm OCT at 10°N: 23° high at 9 pm NOV at 10°N: 34° high at 9 pm DEC at 10°N: 38° high at 9 pm 0°
JAN at 0°: 23° high at 9 pm FEB at 0°: 12° high at 9 pm MAR at 0°: -0° high at 9 pm APR at 0°: -14° high at 9 pm MAY at 0°: -24° high at 9 pm JUN at 0°: -28° high at 9 pm JUL at 0°: -24° high at 9 pm AUG at 0°: -13° high at 9 pm SEP at 0°: 1° high at 9 pm OCT at 0°: 14° high at 9 pm NOV at 0°: 24° high at 9 pm DEC at 0°: 28° high at 9 pm 10°S
JAN at 10°S: 14° high at 9 pm FEB at 10°S: 3° high at 9 pm MAR at 10°S: -9° high at 9 pm APR at 10°S: -23° high at 9 pm MAY at 10°S: -34° high at 9 pm JUN at 10°S: -38° high at 9 pm JUL at 10°S: -33° high at 9 pm AUG at 10°S: -22° high at 9 pm SEP at 10°S: -8° high at 9 pm OCT at 10°S: 5° high at 9 pm NOV at 10°S: 15° high at 9 pm DEC at 10°S: 18° high at 9 pm 20°S
JAN at 20°S: 4° high at 9 pm FEB at 20°S: -6° high at 9 pm MAR at 20°S: -18° high at 9 pm APR at 20°S: -32° high at 9 pm MAY at 20°S: -43° high at 9 pm JUN at 20°S: -48° high at 9 pm JUL at 20°S: -43° high at 9 pm AUG at 20°S: -31° high at 9 pm SEP at 20°S: -17° high at 9 pm OCT at 20°S: -4° high at 9 pm NOV at 20°S: 5° high at 9 pm DEC at 20°S: 8° high at 9 pm 30°S
JAN at 30°S: -6° high at 9 pm FEB at 30°S: -15° high at 9 pm MAR at 30°S: -26° high at 9 pm APR at 30°S: -41° high at 9 pm MAY at 30°S: -53° high at 9 pm JUN at 30°S: -58° high at 9 pm JUL at 30°S: -52° high at 9 pm AUG at 30°S: -40° high at 9 pm SEP at 30°S: -25° high at 9 pm OCT at 30°S: -13° high at 9 pm NOV at 30°S: -5° high at 9 pm DEC at 30°S: -2° high at 9 pm 40°S
JAN at 40°S: -15° high at 9 pm FEB at 40°S: -24° high at 9 pm MAR at 40°S: -35° high at 9 pm APR at 40°S: -49° high at 9 pm MAY at 40°S: -62° high at 9 pm JUN at 40°S: -68° high at 9 pm JUL at 40°S: -61° high at 9 pm AUG at 40°S: -48° high at 9 pm SEP at 40°S: -34° high at 9 pm OCT at 40°S: -22° high at 9 pm NOV at 40°S: -15° high at 9 pm DEC at 40°S: -12° 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 28°S, and never sets north of 28°N.
LBN 648 is 6,590 light-years away
The light seen from LBN 648 tonight left it about 6,590 years ago. Distance source: IC 1805, Gaia DR3, Hunt and Reffert 2023.
27 Lynds bright nebulae and 30 Lynds dark nebulae lie within 5° of LBN 648
The nearest:
LBN 647, emission nebula, 12′ LBN 646, emission nebula, 14′ LDN 1359, dark nebula, 24′ LBN 645 Fish Head Nebula, emission nebula, 26′ LDN 1361, dark nebula, 35′ LDN 1364, dark nebula, 40′ LBN 650, emission nebula, 43′ LDN 1356, dark nebula, 52′ LDN 1368, dark nebula, 56′ LDN 1367, dark nebula, 58′
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
IC 1795 Fish Head Nebula, H II region, 20′ NGC 896, nebula, 27′ IC 1805, cluster with nebula, 52′ NGC 1027, open cluster, 1.7° IC 1848 Soul Nebula, cluster with nebula, 3.2° IC 1747, planetary nebula, 3.8°
LBN 648 catalog data
Field Value
Designations LBN 648 Constellation Cassiopeia Type emission nebula Right ascension (J2000) 02h 29.0m Declination (J2000) +62° 13′ Galactic longitude and latitude 134.04°, +1.46° Brightness class 6 of 6 (the faintest) Color class 3 of 4 (reddish) Apparent size 2° × 1° True size 230 light-years Distance 6,590 light-years (IC 1805, Gaia DR3, Hunt and Reffert 2023) Best with Camera Best month December Catalog page LBN 501 to 1000
