Coord 2000 | 02020+0246 |
Discov num | STF 202 |
Comp | AB |
Coord arcsec 2000 | 02 02 02.80 +02 45 49.4 |
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Date first | 1779 |
Date last | 2019 |
Obs | 631 |
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Pa first | 337 |
Pa last | 264 |
P.A. Now (θ) | 261.1° |
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Sep first | 5.1 |
Sep last | 1.9 |
Sep. Now (ρ) | 1.85" |
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Mag pri | 4.10 |
Mag sec | 5.17 |
delta mag (ΔM) | 1.07 |
Spectral class | A0p+A3m (white/white) |
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Pri motion ra | +042 |
Sec motion ra | +042 |
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Pri motion dec | -011 |
Sec motion dec | -011 |
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Notes |
Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Alrisha | 110291 | 02020+0246 | STF 202 | AB | 1779 | 2019 | 631 | 261 | 1.8 | 4.10 | 5.17 | 1.07 | Y | <=== |
Show | 110291 | 02020+0246 | PWL 1 | AC | 1856 | 2006 | 9 | 63 | 404.9 | 4.10 | 8.25 | 4.15 | |||
Show | 110291 | 02020+0246 | PWL 1 | AD | 1856 | 2006 | 9 | 335 | 434.5 | 4.10 | 8.59 | 4.49 |
Precise pa | 263.5 |
Precise sep | 1.93 |
Common name | Alrisha |
Meaning | cords, tapes |
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Other names | ALRISCHA, OKDA, KAITAIN |
Constellation | Pisces |
SAO | 110291 |
HIP | 9487 |
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Tycho2 | 0040-01338-1 |
Gaia DR2 | 07848935808 |
HD | 12446 |
HR | 595 |
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GC | 2452 |
ADS | 1615 |
BD | BD+02 317 |
Bayer | Alpha Piscium |
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Bayer name | Alp Psc |
Flamsteed | 113 Piscium |
Flamsteed name | 113 Ps |
Distance | 46.17 |
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Distance ly | 150.61 |
last precise pa | 263.5 |
last precise sep | 1.93 |
Period (P) | 1946.9984y | ± 796.241 | Periastron (T) | 2179.9279y | ± 83.7955 | Semi-major axis (a) | 8.28932a | ± 3.29562 |
Eccentricity (e) | 0.78486 | ± 0.19765 | Inclination (i) | 105.175° | ± 7.113 | Longitude of periastron (ω) | 227.073° | ± 33.21 |
Node (Ω) | 18.692° | ± 14.955 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 2014 |
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 |
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coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
02020+0246 | STF 202 | AB | 2007 | 588 | 269 | 1.8 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2008 | 592 | 269 | 1.9 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2009 | 597 | 268 | 1.8 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2010 | 608 | 267 | 1.8 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2011 | 610 | 266 | 1.9 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2012 | 615 | 266 | 1.7 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2014 | 620 | 263 | 1.6 | 4.10 | 5.17 | A0p A3m | NOD | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2015 | 616 | 264 | 1.8 | 4.10 | 5.17 | A0p+A3m | NO | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2016 | 619 | 265 | 1.8 | 4.10 | 5.17 | A0p+A3m | NO | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2017 | 621 | 265 | 1.9 | 4.10 | 5.17 | A0p+A3m | NO | 020202.80+024549.4 |
02020+0246 | STF 202 | AB | 2019 | 631 | 264 | 1.9 | 4.10 | 5.17 | A0p+A3m | NO | 020202.80+024549.4 |