LBN 673 is an emission nebula in Cassiopeia
LBN 673 is an emission nebula in the constellation Cassiopeia . Lynds rated it brightness class 2 of 6, bright, and color class 3, reddish. It spans 25′ × 7′ 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 673 from γ Per
γ Per
LBN 673
CASSIOPEIA
LBN 673 lies 7.1° north of γ Per , the magnitude 2.9 star. Three fingers held at arm's length cover about 5°.
LBN 673 is highest in the evening in December
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60°N
JAN at 60°N: 77° high at 9 pm FEB at 60°N: 63° high at 9 pm MAR at 60°N: 51° high at 9 pm APR at 60°N: 41° high at 9 pm MAY at 60°N: 34° high at 9 pm JUN at 60°N: 31° high at 9 pm JUL at 60°N: 32° high at 9 pm AUG at 60°N: 38° high at 9 pm SEP at 60°N: 47° high at 9 pm OCT at 60°N: 59° high at 9 pm NOV at 60°N: 73° high at 9 pm DEC at 60°N: 87° high at 9 pm 50°N
JAN at 50°N: 72° high at 9 pm FEB at 50°N: 57° high at 9 pm MAR at 50°N: 45° high at 9 pm APR at 50°N: 32° high at 9 pm MAY at 50°N: 24° high at 9 pm JUN at 50°N: 21° high at 9 pm JUL at 50°N: 22° high at 9 pm AUG at 50°N: 29° high at 9 pm SEP at 50°N: 40° high at 9 pm OCT at 50°N: 53° high at 9 pm NOV at 50°N: 68° high at 9 pm DEC at 50°N: 79° high at 9 pm 40°N
JAN at 40°N: 64° high at 9 pm FEB at 40°N: 50° high at 9 pm MAR at 40°N: 37° high at 9 pm APR at 40°N: 24° high at 9 pm MAY at 40°N: 15° high at 9 pm JUN at 40°N: 11° high at 9 pm JUL at 40°N: 12° high at 9 pm AUG at 40°N: 20° high at 9 pm SEP at 40°N: 32° high at 9 pm OCT at 40°N: 46° high at 9 pm NOV at 40°N: 60° high at 9 pm DEC at 40°N: 69° high at 9 pm 30°N
JAN at 30°N: 55° high at 9 pm FEB at 30°N: 42° high at 9 pm MAR at 30°N: 29° high at 9 pm APR at 30°N: 15° high at 9 pm MAY at 30°N: 5° high at 9 pm JUN at 30°N: 1° high at 9 pm JUL at 30°N: 3° high at 9 pm AUG at 30°N: 11° high at 9 pm SEP at 30°N: 23° high at 9 pm OCT at 30°N: 38° high at 9 pm NOV at 30°N: 52° high at 9 pm DEC at 30°N: 59° high at 9 pm 20°N
JAN at 20°N: 46° high at 9 pm FEB at 20°N: 34° high at 9 pm MAR at 20°N: 20° high at 9 pm APR at 20°N: 6° high at 9 pm MAY at 20°N: -4° high at 9 pm JUN at 20°N: -9° high at 9 pm JUL at 20°N: -7° high at 9 pm AUG at 20°N: 2° high at 9 pm SEP at 20°N: 15° high at 9 pm OCT at 20°N: 29° high at 9 pm NOV at 20°N: 43° high at 9 pm DEC at 20°N: 49° high at 9 pm 10°N
JAN at 10°N: 36° high at 9 pm FEB at 10°N: 25° high at 9 pm MAR at 10°N: 12° high at 9 pm APR at 10°N: -3° high at 9 pm MAY at 10°N: -14° high at 9 pm JUN at 10°N: -19° high at 9 pm JUL at 10°N: -17° high at 9 pm AUG at 10°N: -7° high at 9 pm SEP at 10°N: 6° high at 9 pm OCT at 10°N: 21° high at 9 pm NOV at 10°N: 33° high at 9 pm DEC at 10°N: 39° high at 9 pm 0°
JAN at 0°: 26° high at 9 pm FEB at 0°: 16° high at 9 pm MAR at 0°: 3° high at 9 pm APR at 0°: -12° high at 9 pm MAY at 0°: -23° high at 9 pm JUN at 0°: -29° high at 9 pm JUL at 0°: -27° high at 9 pm AUG at 0°: -17° high at 9 pm SEP at 0°: -2° high at 9 pm OCT at 0°: 12° high at 9 pm NOV at 0°: 24° high at 9 pm DEC at 0°: 29° high at 9 pm 10°S
JAN at 10°S: 17° high at 9 pm FEB at 10°S: 7° high at 9 pm MAR at 10°S: -6° high at 9 pm APR at 10°S: -21° high at 9 pm MAY at 10°S: -33° high at 9 pm JUN at 10°S: -39° high at 9 pm JUL at 10°S: -36° high at 9 pm AUG at 10°S: -26° high at 9 pm SEP at 10°S: -11° high at 9 pm OCT at 10°S: 3° high at 9 pm NOV at 10°S: 14° high at 9 pm DEC at 10°S: 19° high at 9 pm 20°S
JAN at 20°S: 7° high at 9 pm FEB at 20°S: -2° high at 9 pm MAR at 20°S: -14° high at 9 pm APR at 20°S: -29° high at 9 pm MAY at 20°S: -42° high at 9 pm JUN at 20°S: -49° high at 9 pm JUL at 20°S: -46° high at 9 pm AUG at 20°S: -34° high at 9 pm SEP at 20°S: -20° high at 9 pm OCT at 20°S: -6° high at 9 pm NOV at 20°S: 5° high at 9 pm DEC at 20°S: 9° high at 9 pm 30°S
JAN at 30°S: -3° high at 9 pm FEB at 30°S: -11° high at 9 pm MAR at 30°S: -23° high at 9 pm APR at 30°S: -38° high at 9 pm MAY at 30°S: -51° high at 9 pm JUN at 30°S: -59° high at 9 pm JUL at 30°S: -56° high at 9 pm AUG at 30°S: -43° high at 9 pm SEP at 30°S: -28° high at 9 pm OCT at 30°S: -15° high at 9 pm NOV at 30°S: -5° high at 9 pm DEC at 30°S: -1° high at 9 pm 40°S
JAN at 40°S: -13° high at 9 pm FEB at 40°S: -20° high at 9 pm MAR at 40°S: -31° high at 9 pm APR at 40°S: -46° high at 9 pm MAY at 40°S: -60° high at 9 pm JUN at 40°S: -69° high at 9 pm JUL at 40°S: -65° high at 9 pm AUG at 40°S: -51° high at 9 pm SEP at 40°S: -36° high at 9 pm OCT at 40°S: -24° high at 9 pm NOV at 40°S: -14° high at 9 pm DEC at 40°S: -11° 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.
The distance to LBN 673 is not well measured
No reliable distance has been measured for it yet.
33 Lynds bright nebulae and 29 Lynds dark nebulae lie within 5° of LBN 673
The nearest:
LBN 672, emission nebula, 25′ LBN 667 Soul Nebula, emission nebula, 40′ LBN 670, emission nebula, 51′ LBN 675, emission nebula, 52′ LBN 669, emission nebula, 1.1° LDN 1375, dark nebula, 1.4° LDN 1376, dark nebula, 1.5° LBN 662, emission nebula, 1.7° LBN 661, emission nebula, 1.7° LBN 660, emission nebula, 1.7°
NGC and IC objects in the field that are brighter than magnitude 12.5 or have their own page:
LBN 673 catalog data
Field Value
Designations LBN 673 Constellation Cassiopeia Type emission nebula Right ascension (J2000) 02h 56.1m Declination (J2000) +60° 31′ Galactic longitude and latitude 137.69°, +1.27° Brightness class 2 of 6 (bright) Color class 3 of 4 (reddish) Apparent size 25′ × 7′ Best with Telescope Best month December Catalog page LBN 501 to 1000
