2023台大物理營
Love Theory
Journal d'observation
NGC 1952
Right ascension: 05h 34m 31.94s
Declination: +22° 00′ 52.2″
Distance: 6500±1600 ly (2000±500 pc)
Apparent magnitude (V): 8.4
Apparent dimensions (V): 420″ × 290″
NGC 6853
Right ascension19h: 59m 36.340s
Declination: +22° 43′ 16.09″
Distance: 376.3±6.2 pc
Apparent magnitude (V): 7.4
Apparent dimensions (V): 8.0′ × 5.6′[5]
NGC 6523
Right ascension: 18h 03m 37s
Declination: 24° 23′ 12″
Apparent magnitude (V): 4.6
Apparent dimensions (V): 90 × 40 arcmins
NGC 1982
Mass: 5.4 M☉
Luminosity (bolometric): 1,260 L☉
Surface gravity (log g): 2.2 cgs
Temperature: 6015 K
Metallicity: 112% solar
Rotation: 119 days
Rotational velocity (v sin i): 14 km/s
NGC 4406
Right ascension: 12h 26m 11.7s
Declination: +12° 56′ 46″
Redshift: -0.000814 ± 0.000017 (-244 ± 5 km/s)
Distance: 52 ± 3 Mly (15.9 ± 1.0 Mpc)
Apparent magnitude (V): 8.9
NGC 6720
Right ascension: 18h 53m 35.079s
Declination: +33° 01′ 45.03″
Distance: 2567±115 ly (787±35 pc)
Apparent magnitude (V): 8.8
Apparent dimensions (V): 230″ × 230″
NGC 3351
Right ascension: 10h 43m 57.7s
Declination: +11° 42′ 14″
Distance: 32.6 ± 1.4 Mly (10.0 ± 0.4 Mpc)
Apparent magnitude (V): 9.7
NGC 7099
Right ascension: 21h 40m 22.12s[2]
Declination: –23° 10′ 47.5″[2]
Distance: 27.14 ± 0.65 kly (8.3 ± 0.20 kpc)[3][4]
Apparent magnitude (V): 7.2
Apparent dimensions (V): 12'.0
NGC 5194
Right ascension: 13h 29m 59.6s
Declination: +47° 15′ 58″
Distance: 25 ± 3 Mly (7.7 ± 1.0 Mpc)
Apparent magnitude (V): 10.5
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