LBN 657 is an emission nebula in Cassiopeia
LBN 657 is an emission nebula in the constellation Cassiopeia . Lynds rated it brightness class 2 of 6, bright, and color class 3, reddish. It spans 15′ × 10′ of sky. It is a telescope object under a dark sky; a nebula filter helps, 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 657 from Segin
Segin
LBN 657
CASSIOPEIA
LBN 657 lies 5.5° southeast of Segin , the magnitude 3.4 star. Three fingers held at arm's length cover about 5°.
LBN 657 is highest in the evening in December
JAN
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MAY
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DEC
60°N
JAN at 60°N: 75° high at 9 pm FEB at 60°N: 60° high at 9 pm MAR at 60°N: 49° high at 9 pm APR at 60°N: 39° high at 9 pm MAY at 60°N: 33° high at 9 pm JUN at 60°N: 30° high at 9 pm JUL at 60°N: 33° high at 9 pm AUG at 60°N: 39° high at 9 pm SEP at 60°N: 49° high at 9 pm OCT at 60°N: 61° high at 9 pm NOV at 60°N: 76° high at 9 pm DEC at 60°N: 89° high at 9 pm 50°N
JAN at 50°N: 70° 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: 31° high at 9 pm MAY at 50°N: 23° high at 9 pm JUN at 50°N: 20° high at 9 pm JUL at 50°N: 23° high at 9 pm AUG at 50°N: 31° high at 9 pm SEP at 50°N: 42° high at 9 pm OCT at 50°N: 56° high at 9 pm NOV at 50°N: 71° high at 9 pm DEC at 50°N: 80° high at 9 pm 40°N
JAN at 40°N: 62° 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: 22° high at 9 pm MAY at 40°N: 13° high at 9 pm JUN at 40°N: 10° high at 9 pm JUL at 40°N: 13° high at 9 pm AUG at 40°N: 22° high at 9 pm SEP at 40°N: 34° high at 9 pm OCT at 40°N: 49° high at 9 pm NOV at 40°N: 63° high at 9 pm DEC at 40°N: 70° high at 9 pm 30°N
JAN at 30°N: 53° high at 9 pm FEB at 30°N: 40° high at 9 pm MAR at 30°N: 26° high at 9 pm APR at 30°N: 13° high at 9 pm MAY at 30°N: 4° high at 9 pm JUN at 30°N: 0° high at 9 pm JUL at 30°N: 4° high at 9 pm AUG at 30°N: 13° high at 9 pm SEP at 30°N: 26° high at 9 pm OCT at 30°N: 41° high at 9 pm NOV at 30°N: 54° high at 9 pm DEC at 30°N: 60° high at 9 pm 20°N
JAN at 20°N: 44° high at 9 pm FEB at 20°N: 31° high at 9 pm MAR at 20°N: 18° high at 9 pm APR at 20°N: 4° high at 9 pm MAY at 20°N: -6° high at 9 pm JUN at 20°N: -10° high at 9 pm JUL at 20°N: -6° high at 9 pm AUG at 20°N: 4° 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: 45° high at 9 pm DEC at 20°N: 50° high at 9 pm 10°N
JAN at 10°N: 34° high at 9 pm FEB at 10°N: 22° 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: -16° high at 9 pm JUN at 10°N: -20° high at 9 pm JUL at 10°N: -16° high at 9 pm AUG at 10°N: -5° high at 9 pm SEP at 10°N: 9° high at 9 pm OCT at 10°N: 23° high at 9 pm NOV at 10°N: 35° high at 9 pm DEC at 10°N: 40° high at 9 pm 0°
JAN at 0°: 25° high at 9 pm FEB at 0°: 13° high at 9 pm MAR at 0°: 0° high at 9 pm APR at 0°: -14° high at 9 pm MAY at 0°: -25° high at 9 pm JUN at 0°: -30° high at 9 pm JUL at 0°: -25° high at 9 pm AUG at 0°: -14° high at 9 pm SEP at 0°: 0° high at 9 pm OCT at 0°: 14° high at 9 pm NOV at 0°: 26° high at 9 pm DEC at 0°: 30° high at 9 pm 10°S
JAN at 10°S: 15° high at 9 pm FEB at 10°S: 4° high at 9 pm MAR at 10°S: -8° high at 9 pm APR at 10°S: -23° high at 9 pm MAY at 10°S: -35° high at 9 pm JUN at 10°S: -40° high at 9 pm JUL at 10°S: -35° high at 9 pm AUG at 10°S: -23° 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: 16° high at 9 pm DEC at 10°S: 20° high at 9 pm 20°S
JAN at 20°S: 6° high at 9 pm FEB at 20°S: -5° high at 9 pm MAR at 20°S: -17° high at 9 pm APR at 20°S: -32° high at 9 pm MAY at 20°S: -44° high at 9 pm JUN at 20°S: -50° high at 9 pm JUL at 20°S: -44° high at 9 pm AUG at 20°S: -32° 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: 6° high at 9 pm DEC at 20°S: 10° high at 9 pm 30°S
JAN at 30°S: -4° high at 9 pm FEB at 30°S: -14° high at 9 pm MAR at 30°S: -26° high at 9 pm APR at 30°S: -40° high at 9 pm MAY at 30°S: -53° high at 9 pm JUN at 30°S: -60° high at 9 pm JUL at 30°S: -54° 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: -4° high at 9 pm DEC at 30°S: -0° high at 9 pm 40°S
JAN at 40°S: -14° high at 9 pm FEB at 40°S: -22° high at 9 pm MAR at 40°S: -34° high at 9 pm APR at 40°S: -48° high at 9 pm MAY at 40°S: -62° high at 9 pm JUN at 40°S: -70° high at 9 pm JUL at 40°S: -63° 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: -13° high at 9 pm DEC at 40°S: -10° 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 30°S, and never sets north of 30°N.
The distance to LBN 657 is not well measured
No reliable distance has been measured for it yet.
25 Lynds bright nebulae and 27 Lynds dark nebulae lie within 5° of LBN 657
The nearest:
LBN 656, emission nebula, 5′ LDN 1370, dark nebula, 8′ LDN 1371, dark nebula, 21′ LBN 655, emission nebula, 36′ LDN 1365, dark nebula, 37′ LBN 654 Heart Nebula, emission nebula, 46′ LDN 1367, dark nebula, 51′ LDN 1363, dark nebula, 52′ LDN 1368, dark nebula, 56′ LDN 1369, dark nebula, 56′
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
IC 1805, cluster with nebula, 1.0° NGC 1027, open cluster, 1.6° IC 1795 Fish Head Nebula, H II region, 1.8° NGC 896, nebula, 1.8° IC 1848 Soul Nebula, cluster with nebula, 2.3° NGC 957, open cluster, 2.9°
LBN 657 catalog data
Field Value
Designations LBN 657 Constellation Cassiopeia Type emission nebula Right ascension (J2000) 02h 32.9m Declination (J2000) +60° 27′ Galactic longitude and latitude 135.13°, +0.01° Brightness class 2 of 6 (bright) Color class 3 of 4 (reddish) Apparent size 15′ × 10′ Best with Telescope Best month December Catalog page LBN 501 to 1000
