Coord 2000 | 22430+3013 | Discov num | FYM 145 | Comp | BF | Coord arcsec 2000 | 22 42 57.46 +30 14 42.9 | ||||
Date first | 1998 | Date last | 2015 | Obs | 7 | ||||||
Pa first | 355 | Pa last | 354.9 | P.A. Now (θ) | 354.9° | ||||||
Sep first | 56.5 | Sep last | 56.377 | Sep. Now (ρ) | 56.377" | ||||||
Mag pri | 9.87 | Mag sec | 14.20 | delta mag (ΔM) | 4.33 | Spectral class | G5 (yellow) | ||||
Pri motion ra | -006 | Sec motion ra | -012 | ||||||||
Pri motion dec | -007 | Sec motion dec | +002 | ||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 90734 | 22 43 00 +30 13 17 | BLA 11 Aa,Ab | 2005 | 66 | 28 | 0.1 | 4.10 | 6.90 | 2.80 | Y | ||
Show | Matar | 90734 | 22 43 00 +30 13 17 | BU 1144 A,BC | 2012 | 28 | 338 | 91.9 | 3.02 | 9.87 | 6.85 | ||
Show | 90734 | 22 43 00 +30 13 17 | FYM 145 AG | 2015 | 4 | 272 | 119.1 | 3.02 | 13.50 | 10.48 | |||
Show | 90734 | 22 43 00 +30 13 17 | FYM 145 AH | 2015 | 5 | 149 | 80.1 | 3.02 | 14.20 | 11.18 | |||
Show | 90734 | 22 43 00 +30 13 17 | FYM 145 AJ | 2015 | 5 | 38 | 94.3 | 3.02 | 15.00 | 11.98 | |||
Show | 22 42 57 +30 14 43 | BU 1144 BC | 2014 | 21 | 84 | 0.2 | 10.60 | 10.60 | 0.00 | ||||
Show | 22 42 57 +30 14 43 | BU 1144 BC,D | 2014 | 7 | 321 | 62.9 | 9.87 | 14.50 | 4.63 | ||||
Show | 22 42 57 +30 14 43 | FYM 145 BF | 2015 | 7 | 355 | 56.4 | 9.87 | 14.20 | 4.33 | <=== | |||
Show | 22 42 54 +30 15 32 | BU 1144 DE | 2015 | 8 | 160 | 5.3 | 14.50 | 15.50 | 1.00 | ||||
Show | 22 43 03 +30 12 08 | FYM 145 HI | 2014 | 4 | 195 | 15.0 | 14.20 | 14.70 | 0.50 |
Constellation | Pegasus | Tycho2 | 2736-00133-1 | Gaia DR2 | 1887953759446938496 |
discov_num | notes | refcode |
BLA 11 | Aa,Ab: eta Peg = 44 Peg = Matar. Spectroscopic binary resolved by | |
speckle interferometry. Spectrum of Aa,Ab is composite; G2II-III+F0IV. | ||
Hence a quadruple system. | ||
The elements P, T, e in the astrometric solution by van de Kamp & | ||
Damkoehler (1957) have been taken from the spectroscopic orbit by | Kam1957 | |
Crawford. The astrometric amplitude is marginal and not certainly real | ||
See Baize & Petit (1989) catalog of doubles with variable component. | Baz1989d | |
Hipparcos astrometric solution adopted some elements from the orbit of | HIP1997d | |
Crawford (1901). | Crw1901 | |
Aa,Ab: Malkov et al. (2012) derive dynamical and spectroscopic masses | ||
5.17 +/- 0.72 and 3.35 Msun, respectively. | Mlk2012 | |
Aa,Ab: Ren & Fu (2013) calculated an astrometric orbit, combining | Ren2013 | |
Hipparcos Intermediate Astrometric Data with spectroscopic elements by | ||
Massarotti et al. (2008). | Msr2008 | |
NPOI Limb-darkened diameter 3.471 +/- 0.027 mas, Sp = G2III, | NOI2018 | |
R = 24.51 +/- 1.16 \rsun, Teff = 4970 +/- 65 K, | ||
L = 330.8 +/- 35.0 \lsun, M = 3.51 +/- 0.13 \msun, | ||
Age = 0.27 +/- 0.03 Gyr. | ||
BU 1144 | The pair BC (mags. 10.1-10.1, 0.3") is 91" distant and probably | |
physical; B is BD+29@4740. | ||
Aka H 6 21 = S 816. |
refcode | metd | author | reference |
Baz1989d | - | Baize, P. & Petit, M. | 1989A&AS...77..497B |
Baz1989d | A&AS 77, 497, 1989 | ||
Crw1901 | - | Crawford, R.T. | 1901LicOB...1...29C |
Crw1901 | Lick Obs. Bull. 1, 29, 1901 | ||
HIP1997d | orb - | Hipparcos | 1997yCat.1239....0E |
HIP1997d | Hipparcos Catalog, ESA SP-1200, 1997 | ||
HIP1997d | (DMSA/O Orbital Solutions) | ||
Kam1957 | orb - | van de Kamp, P. & Damkoehler, J.E. | 1957AJ.....62..393V |
Kam1957 | AJ 62, 393, 1957 | ||
Mlk2012 | not - | Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. | 2012A&A...546A..69M |
Mlk2012 | A&A 546, A69, 2012 | ||
Msr2008 | orb - | Massarotti, A., Latham, D.W., Stefanik, R.P., & Fogel, J. | 2008AJ....135..209M |
Msr2008 | AJ 135, 209, 2008 | ||
NOI2018 | not j | Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter, | 2018AJ....155...30B |
NOI2018 | D.J., Tycner, C. & van Belle, G.T. | ||
NOI2018 | AJ 155, 30, 2018 | ||
Ren2013 | orb - | Ren, S. & Fu, Y. | 2013AJ....145...81R |
Ren2013 | AJ 145, 81, 2013 |
idgroup | discov | author |
1 | BLA | Blazit, A., Bonneau, D., Koechlin, L. & Labeyrie, A. |
6 | BU | Burnham, S.W. (BU 1 - 81) |
184 | FYM | Fay, M. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
22430+3013 | FYM 145 | BF | 2012 | 3 | 356 | 56.4 | 9.87 | 14.20 | N | 224257.46+301442.9 | |
22430+3013 | FYM 145 | BF | 2015 | 4 | 355 | 56.4 | 9.87 | 14.20 | G5 | N | 224257.46+301442.9 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | Ab | B | C | D | E | F | G | H | I | |
Ab | pa=24.5° sep=0.05" | |||||||||
B | pa=338.1° sep=92.89" | pa=338.1° sep=92.85" | ||||||||
C | pa=338.2° sep=92.84" | pa=338.2° sep=92.81" | pa=82.7° sep=0.17" | |||||||
D | pa=331.1° sep=154.20" | pa=331.1° sep=154.17" | pa=320.7° sep=63.04" | pa=320.6° sep=63.13" | ||||||
E | pa=330.7° sep=149.10" | pa=330.7° sep=149.07" | pa=318.8° sep=58.24" | pa=318.7° sep=58.34" | pa=162.7° sep=5.21" | |||||
F | pa=344.7° sep=147.58" | pa=344.7° sep=147.54" | pa=355.6° sep=56.32" | pa=355.4° sep=56.31" | pa=78.3° sep=36.33" | pa=70.1° sep=36.19" | ||||
G | pa=271.7° sep=102.88" | pa=271.7° sep=102.90" | pa=219.4° sep=107.50" | pa=219.4° sep=107.63" | pa=192.1° sep=134.89" | pa=193.2° sep=130.37" | pa=204.6° sep=153.19" | |||
H | pa=149.3° sep=80.39" | pa=149.3° sep=80.42" | pa=154.0° sep=172.76" | pa=154.1° sep=172.71" | pa=150.5° sep=234.57" | pa=150.2° sep=229.48" | pa=159.3° sep=226.09" | pa=116.6° sep=161.04" | ||
I | pa=155.7° sep=91.77" | pa=155.7° sep=91.80" | pa=156.9° sep=184.62" | pa=157.0° sep=184.57" | pa=152.8° sep=245.79" | pa=152.6° sep=240.65" | pa=161.3° sep=238.65" | pa=121.7° sep=165.23" | pa=192.9° sep=14.91" | |
J | pa=33.6° sep=89.71" | pa=33.6° sep=89.66" | pa=97.8° sep=85.07" | pa=97.8° sep=84.90" | pa=115.9° sep=138.06" | pa=114.3° sep=134.55" | pa=127.4° sep=111.49" | pa=64.9° sep=168.47" | pa=3.4° sep=144.04" | pa=4.3° sep=158.77" |
Common name | Matar | Meaning | Mongolian proposal; a name given to the Gobi bear. | Coord arcsec 2000 | 224300.13+301316.7 | Mag | 3.02 | ||||
Spectral class | G2III (yellow) | PmRA | 13.00 | PmDE | -26.0 | SAO | 90734 | ||||
HIP | 112158 | Tycho2 | 2736-01823-1 | HD | 215182 | HR | 8650 | ||||
GC | 31706 | BD | BD+29 4741 | Bayer | Eta Pegasi | Bayer name | Eta Peg | ||||
Flamsteed | 44 Pegasi | Flamsteed name | 44 Peg | FK5 | 857 |
Tycho2 | 2736-01823-1 | Pflag | RAmdeg | 340.75057944 | DEmdeg | 30.22124754 | |||||
PmRA | 15.3 | PmDE | -26.2 | E RAmdeg | 3 | E DEmdeg | 3 | ||||
E pmRA | 0.4 | E pmDE | 0.5 | EpRAm | 1990.71 | EpDEm | 1990.93 | ||||
Num | 25 | Q RAmdeg | 2.3 | Q DEmdeg | 1.7 | Q pmRA | 2.5 | ||||
Q pmDE | 1.6 | BTmag | 3.998 | E BTmag | 0.014 | VTmag | 3.016 | ||||
E VTmag | 0.009 | Prox | 929 | TYC | T | HIP | 112158 | ||||
CCDM | RAdeg | 340.75053778 | DEdeg | 30.22130833 | EpRA 1990 | 1.62 | |||||
EpDE 1990 | 1.66 | E RAdeg | 3.2 | E DEdeg | 3.2 | Posflg | |||||
Corr | -0.3 |
SAO | 90734 | DelFlag | RA1950 | PmRA1950 | 0.001 | ||||||
DE1950 | PmDE1950 | -0.021 | Vmag | 3.1 | SpType | G0 | |||||
Double code | Source | 74 | CatNum | 857 | DM | BD+29 4741 | |||||
DMcomp | BDsup | HD | 215182 | M HD | 0 | ||||||
GC | 31706 | RA1950rad | 5.93697481 | DE1950rad | 0.52288814 | PmRA2000 | 0.0011 | ||||
PmDE2000 | -0.026 |
Catalog | H | HIP | 112158 | Proxy | RAhms | 22 43 00.13 | |||||
DEdms | +30 13 16.7 | Vmag | 2.93 | VarFlag | R Vmag | H | |||||
RAdeg | 340.751 | DEdeg | 30.2213 | AstroRef | + | Plx | 15.18 | ||||
CCDM | 22430+3014 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
MultFlag | O | Source | Qual | M HIP | |||||||
Theta | Rho | HD | 215182 | BD | BD+29 4741 | ||||||
CD | CP | Dm number | +29 4741 | VIred | 0.87 | ||||||
SpType | G2II-III.. | R SpType | Coord arcsec 2000 | 224300.13+301316.7 |
HIP | 112158 | Sn | 75 | So | 4 | Nc | 1 | ||||
RArad | 5.947218774 | DErad | 0.527461319 | Plx | 15.22 | PmRA | 13.16 | ||||
PmDE | -25.67 | E RArad | 0.43 | E DErad | 0.46 | E Plx | 0.71 | ||||
E pmRA | 0.5 | E pmDE | 0.56 | Hpmag | 3.0897 | E Hpmag | 0.0004 | ||||
SHp | 0.004 | VA | 0 | BV | 0.852 | E BV | 0.008 | ||||
VI | 0.87 |
Coord arcsec 2000 | 224300.13+301316.7 | Mag | 6.9 | Calc delta mag | 2.8 | Calc coord | yes |
Coord arcsec 2000 | 224257.46+301442.9 | Mag | 10.6 | Spectral class | G5 (yellow) | PmRA | -6.00 | ||||
PmDE | -7.0 | Tycho2 | 2736-00133-1 | Calc delta mag | 6.5 |
Tycho2 | 2736-00133-1 | Pflag | RAmdeg | 340.73939686 | DEmdeg | 30.24526203 | |||||
PmRA | -7.9 | PmDE | -5.5 | E RAmdeg | 38 | E DEmdeg | 36 | ||||
E pmRA | 1.8 | E pmDE | 1.7 | EpRAm | 1977.78 | EpDEm | 1977.33 | ||||
Num | 7 | Q RAmdeg | 0.9 | Q DEmdeg | 0.7 | Q pmRA | 0.8 | ||||
Q pmDE | 0.7 | BTmag | 10.917 | E BTmag | 0.044 | VTmag | 9.872 | ||||
E VTmag | 0.028 | Prox | 929 | TYC | T | HIP | |||||
CCDM | RAdeg | 340.73942583 | DEdeg | 30.24526722 | EpRA 1990 | 1.63 | |||||
EpDE 1990 | 1.59 | E RAdeg | 69.0 | E DEdeg | 73.8 | Posflg | |||||
Corr | -0.3 |
Coord arcsec 2000 | 224257.47+301442.9 | Mag | 10.6 | Calc delta mag | 6.5 | Calc coord | yes |
Coord arcsec 2000 | 224254.38+301531.7 | Coord calc | 224254.38+301531.7 | Mag | 14.5 | PmRA | -6.00 | ||||
PmDE | 5.0 | Calc delta mag | 10.4 |
Coord arcsec 2000 | 224254.50+301526.7 | Mag | 15.5 | Calc delta mag | 11.4 | Calc coord | yes |
Coord arcsec 2000 | 224257.13+301539.1 | Mag | 14.2 | PmRA | -12.00 | PmDE | 2.0 | ||||
Calc delta mag | 10.1 | Calc coord | yes |
Coord arcsec 2000 | 224252.20+301319.8 | Mag | 13.5 | PmRA | -10.00 | PmDE | -24.0 | ||||
Calc delta mag | 9.4 | Calc coord | yes |
Coord arcsec 2000 | 224303.30+301207.6 | Coord calc | 224303.30+301207.6 | Mag | 14.2 | PmRA | 26.00 | ||||
PmDE | -19.0 | Calc delta mag | 10.1 |
Coord arcsec 2000 | 224303.04+301153.1 | Mag | 14.7 | PmRA | 5.00 | PmDE | -3.0 | ||||
Calc delta mag | 10.6 | Calc coord | yes |
Coord arcsec 2000 | 224303.96+301431.4 | Mag | 15 | PmRA | 8.00 | PmDE | -21.0 | ||||
Calc delta mag | 10.9 | Calc coord | yes |