7 Piscium

7 Piscium
Data pengamatan
Epos J2000.0      Ekuinoks J2000.0
Rasi bintang Pisces
Asensio rekta  23j 20m 20.58314d[1]
Deklinasi  5° 22′ 52.7012″[1]
Magnitudo tampak (V) 5.069[2]
Ciri-ciri
Kelas spektrum K1 IV[3]
Indeks warna U−B +1.12[4]
Indeks warna B−V +1.20[4]
Astrometri
Gerak diri (μ) RA: 78.47[1] mdb/thn
Dek.: −60.00[1] mdb/thn
Paralaks (π)7,54±0,40[1] mdb
Jarak430 ± 20 tc
(133 ± 7 pc)
Detail[5]
Gravitasi permukaan (log g)1.81 ± 0.28
Suhu4314 ± 80 K
Metalisitas [Fe/H]−0.71 ± 0.12
Penamaan lain
BD+04 4997, FK5 3871, HD 220009, HIP 115227, SAO 128126, HR 8878
Referensi basis data
SIMBADdata

7 Piscium (7 Psc) merupakan salah satu bintang di rasi Pisces. Bintang ini merupakan bintang dengan tipe K2III dan bermagnitudo 5.05. Bintang ini berada pada 341 tahun cahaya dari Bumi.

Asterisma

Selain rasi Pisces, bintang ini merupakan bagian dari:

nama rasi / asterisma / kelompok asal arti anggota lainnya
Circlet Inggris lingkaran γ Psc, ι Psc, θ Psc, λ Psc, κ Psc, 19 Psc, 9 Psc

Referensi

  1. ^ a b c d e van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. ^ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 – L30. Bibcode:2000A&A...355L..27H.
  3. ^ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
  4. ^ a b Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.
  5. ^ Prugniel, Ph.; et al. (July 2011), "The atmospheric parameters and spectral interpolator for the MILES stars", Astronomy & Astrophysics, 531: A165, arXiv:1104.4952, Bibcode:2011A&A...531A.165P, doi:10.1051/0004-6361/201116769.

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