Coord 2000 | 03342+4837 |
Discov num | BU 787 |
Comp | AB |
Coord arcsec 2000 | 03 34 12.97 +48 37 02.9 |
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Date first | 1881 |
Date last | 2010 |
Obs | 17 |
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Pa first | 229 |
Pa last | 291 |
P.A. Now (θ) | 294.1° |
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Sep first | 2.1 |
Sep last | 4.7 |
Sep. Now (ρ) | 4.78" |
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Mag pri | 7.38 |
Mag sec | 11.90 |
delta mag (ΔM) | 4.52 |
Spectral class | B9.5V (blue-white) |
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Pri motion ra | +023 |
Sec motion ra | |||||||||
Pri motion dec | -027 |
Sec motion dec | |||||||||
Notes |
Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 38946 | 03342+4837 | BU 787 | AB | 1881 | 2010 | 17 | 294 | 4.8 | 7.38 | 11.90 | 4.52 | Y | <=== | |
Show | 38946 | 03342+4837 | BU 787 | AD | 1898 | 2010 | 9 | 180 | 34.7 | 7.38 | 11.75 | 4.37 | |||
Show | 38946 | 03342+4837 | ARN 57 | AE | 1903 | 2003 | 10 | 29 | 174.8 | 7.38 | 8.81 | 1.43 |
Constellation | Perseus |
SAO | 38946 |
HIP | 16649 |
Tycho2 | 3317-00589-1 |
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HD | 21931 |
ADS | 2609 |
BD | BD+48 949 |
Distance | 261.1 |
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Distance ly | 851.71 |
last precise pa | 290.9 |
last precise sep | 4.739 |
Period (P) | 655.8y | ± 27.3 | Periastron (T) | 2264.9y | ± 13.5 | Semi-major axis (a) | 4.99a | ± 1.78 |
Eccentricity (e) | 0.261 | ± 0.93 | Inclination (i) | 70° | ± 2.7 | Longitude of periastron (ω) | 291.6° | ± 10.9 |
Node (Ω) | 130.5° | ± 0.9 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 2010 |
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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![]() Measures: green=micrometric, blue=interferometric, purple=photographic |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
03342+4837 | BU 787 | AB | 1999 | 16 | 288 | 4.5 | 7.38 | 11.90 | B9.5V | NOD | 033412.97+483702.9 |
03342+4837 | BU 787 | AB | 2010 | 17 | 291 | 4.7 | 7.38 | 11.90 | B9.5V | NOD | 033412.97+483702.9 |