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Doubles in session


Current system
22430+3013
BU 1144 A,BC
Matar


Nearby doubles
8' : 22428+3021
CHE 386

9' : 22430+3004
CHE 392

12' : 22433+3023
CHE 397

15' : 22425+3000
BKO 662

16' : 22429+2958
CHE 391

16' : 22426+3028
CHE 384

17' : 22424+2958
BKO 661

18' : 22438+3026
CHE 399

18' : 22421+3025
CHE 376

18' : 22441+3023
CHE 402

20' : 22424+3025
CHE 380

23' : 22415+3002
CHE 363

23' : 22413+3012
CHE 358

23' : 22415+3003
STF2932AB

24' : 22443+2957
CHE 407

26' : 22421+2951
SHN 262

27' : 22428+2947
CHE 387

29' : 22409+3020
CHE 351

30' : 22430+2944
CHE 393

30' : 22442+2937
CHE 406

30' : 22451+3003
CHE 415

31' : 22426+2943
BU 710

32' : 22418+3041
CHE 370AB

32' : 22407+3020
CHE 347

32' : 22410+3032
BKO 657

32' : 22432+2941
CHE 395



Selections
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Binary Systems
Triple Systems
Quadruple Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

22430+3013 BU 1144 A,BC (Matar)

 
 
22h 43m 00.13s +30° 13' 16.7" P.A. 338.00 sep 91.9 mag 3.02,9.87 Sp G2III+G5 dist. 65.7 pc (214.31 l.y.)
 
 
Coord 2000 22430+3013 Discov num BU 1144 Comp A,BC Coord arcsec 2000 22 43 00.13 +30 13 16.7
Date first 1824 Date last 2012 Obs 28
Pa first 339 Pa last 337.9 P.A. Now (θ) 337.9°
Sep first 89.8 Sep last 91.929 Sep. Now (ρ) 91.929"
Mag pri 3.02 Mag sec 9.87 delta mag (ΔM) 6.85 Spectral class G2III+G5 (yellow/yellow)
Pri motion ra +013 Sec motion ra -006
Pri motion dec -026 Sec motion dec -007
Notes N (See Notes)
rPM=0.924
This double is not physical.
 
 
22430+3013 SYSTEM COMPONENTS
 
 
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 63 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
11-fold system
11 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Matar Var name NSV14285 Peg Constellation Pegasus SAO 90734
HIP 112158 Tycho2 2736-01823-1 Gaia DR2 1887953690724601984 HD 215182
HR 8650 GC 31706 ADS 16211 BD BD+29 4741
Bayer Eta Pegasi Bayer name Eta Peg Flamsteed 44 Pegasi Flamsteed name 44 Peg
FK5 857 Distance 65.7 Distance ly 214.31 Bayer greek η Peg
Meaning Mongolian proposal; a name given to the Gobi bear.
 
 
WDS 22430+3013 BU 1144 A,BC (Matar) : NOTES
 
 
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.
 
 
REFERENCES
 
 
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
NOI2018 AJ 155, 30, 2018
Ren2013 orb - Ren, S. & Fu, Y. 2013AJ....145...81R
Ren2013 AJ 145, 81, 2013
 
 
DISCOVERER
 
 
discov author
BAZ Baize, P.
HIP (non-component double star solution: G = acceleration solution,
HIP O = orbit solution, V = variability-induced mover, X = stochastic solution)
NOI Benson, J.A., Hutter, D.J., Elias, N.M., Bowers, P.F., Johnston, K.J.,
NOI Hajian, A.R., Armstrong, J.T., Mozurkewich, D., et al.
NOI Nordgren, T.E., Germain, M.E., Benson, J.A., Mozurkewich, D., Sudol, J.J., Elias,
NOI II, N.M., Hajian, A.R., White, N.M., Hutter, D.J., Johnston, K.J., Gauss, F.S.,
NOI Armstrong, J.T., Pauls, T.A. & Rickard, L.J.
NOI Armstrong, J.T., Nordgren, T.E., Germain, M.E., Hajian, A.R., Hindsley, R.B.,
NOI Hummel, C.A., Mozurkewich, D. & Thessin, R.N.
NOI Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
NOI Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.
NOI Koubsky, P., Hummel, C.A., Harmanec, P., Tycner, C., van Leeuwen, F., Yang, S.,
NOI Slechta, M., Bozic, H., Zavala, R.T., Ruzdjak, D., & Sudar, D.
NOI Che, X., Monnier, J.D., Tycner, C., Kraus, S., Zavala, R.T., Baron, F., Pedretti,
NOI E., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Sturmann, J., Sturmann, L.,
NOI & Turner, N.
NOI Hutter, D.J., Zavala, R.T., Tycner, C., Benson, J.A., Hummel, C.A., Sanborn, J.,
NOI Franz, O.G., & Johnston, K.J.
NOI Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D.,
NOI Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X.,
NOI Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L.
NOI Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter,
NOI AJ 155, 30, 2018
NOI Mason, B.D., Griffin, R.E.M., Zavala, R.T., Hummel, C.A., Hurowitz, H.M., Hurowitz,
REN Ren, S. & Fu, Y.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
22430+3013 BU 1144 A,BC 2001 20 339 93.8 3.02 9.87 N D 224300.13+301316.7
22430+3013 BU 1144 A,BC 2008 21 338 93.1 3.02 9.87 N D 224300.13+301316.7
22430+3013 BU 1144 A,BC 2009 23 338 93.3 3.02 9.87 N D 224300.13+301316.7
22430+3013 BU 1144 A,BC 2011 24 338 93.3 3.02 9.87 N D 224300.13+301316.7
22430+3013 BU 1144 A,BC 2012 26 338 94.4 3.02 9.87 N D 224300.13+301316.7

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 22430+3013 BU 1144 A,BC (Matar) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22430+3013 BU 1144 A,BC (Matar) : MEASURES
 
 
No records found.

 
 
WDS 22430+3013 (Matar) : VIRTUAL EYEPIECE
 
 

22430+3013 BU 1144A mag 3.02 Sp G2III 22430+3013 BLA 11Ab mag 6.9 22430+3013 BU 1144B sep 92.9 P.A. 338.10 mag 10.6 Sp G5 22430+3013 BU 1144C sep 92.8 P.A. 338.20 mag 10.6 22430+3013 BU 1144D sep 154.2 P.A. 331.10 mag 14.5 22430+3013 BU 1144E sep 149.0 P.A. 330.80 mag 15.5 22430+3013 FYM 145F sep 147.8 P.A. 344.40 mag 14.2 22430+3013 FYM 145G sep 119.0 P.A. 271.50 mag 13.5 22430+3013 FYM 145H sep 80.4 P.A. 149.30 mag 14.2 22430+3013 FYM 145I sep 91.6 P.A. 156.00 mag 14.7 22430+3013 FYM 145J sep 94.3 P.A. 37.60 mag 15 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 22430+3013 (Matar) : ALADIN DSS IMAGE @ 22h 43m 00.13s +30° 13' 16.7"
 
 
 
 
WDS 22430+3013 BU 1144 A,BC (Matar) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22430+3013 BU 1144A,BC (Matar) distance=0' 22430+3013 FYM 145HI distance=2' 22430+3013 BU 1144BC,D distance=2' 22430+3013 BU 1144BC distance=2' 22430+3013 FYM 145BF distance=2' 22430+3013 BU 1144DE distance=3' 22428+3021 CHE 386 distance=8' 22430+3004 CHE 392 distance=9' 22433+3023 CHE 397 distance=12' 22425+3000 BKO 662 distance=15' 22429+2958 CHE 391 distance=16' 22426+3028 CHE 384 distance=16' 22424+2958 BKO 661 distance=17' 22438+3026 CHE 399 distance=18' 22421+3025 CHE 376 distance=18' 22441+3023 CHE 402 distance=18' 22424+3025 CHE 380 distance=20' 22415+3002 CHE 363 distance=23' 22413+3012 CHE 358 distance=23' 22415+3003 STF2932AB distance=23' 22415+3003 STF2932AC distance=23' 22443+2957 CHE 407 distance=24' 22421+2951 SHN 262 distance=26' 22428+2947 CHE 387 distance=27' 22409+3020 CHE 351 distance=29' 22430+2944 CHE 393 distance=30' 22442+2937 CHE 406 distance=30' 22451+3003 CHE 415 distance=30' 22426+2943 BU 710 distance=31' 22418+3041 CHE 370AB distance=32' 22418+3041 CHE 370AC distance=32' 22407+3020 CHE 347 distance=32' 22410+3032 BKO 657 distance=32' 22432+2941 CHE 395 distance=32' 22416+2947 CHE 366 distance=33' 22429+3045 CHE 390 distance=33' 22407+2959 STF3134 distance=33' 22412+2950 CHE 356 distance=34' 22410+3034 CHE 354AB distance=34' 22410+3034 BKO 656AC distance=34' 22409+3033 CHE 350 distance=34' 22444+3042 CHE 409 distance=34' 22410+3034 BKO 656BC distance=34' 22456+3027 FYM 144CE distance=36' 22441+2940 CHE 403 distance=36' 22456+3027 CHE 418AB distance=36' 22456+3027 FYM 144AC distance=36' 22456+3027 FYM 144AD distance=36' 22424+3048 CHE 379 distance=37' 22440+3047 CHE 401AB distance=37' 22439+2938 CHE 400 distance=37' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show Matar 22430+3013 BLA 11 Aa,Ab 28 0.1 0
Show Matar 22430+3013 BU 1144 A,BC 338 91.9 0
Show Matar 22430+3013 FYM 145 AG 272 119.1 0
Show Matar 22430+3013 FYM 145 AH 149 80.1 0
Show Matar 22430+3013 FYM 145 AJ 38 94.3 0
Show 22430+3013 FYM 145 HI 195 15.0 2
Show 22430+3013 BU 1144 BC,D 321 62.9 2
Show 22430+3013 BU 1144 BC 84 0.2 2
Show 22430+3013 FYM 145 BF 355 56.4 2
Show 22430+3013 BU 1144 DE 160 5.3 3
Show 22428+3021 CHE 386 270 10.7 8
Show 22430+3004 CHE 392 246 27.0 9
Show 22433+3023 CHE 397 41 13.7 12
Show 22425+3000 BKO 662 72 6.4 15
Show 22429+2958 CHE 391 53 28.6 16
Show 22426+3028 CHE 384 51 30.0 16
Show 22424+2958 BKO 661 220 15.2 17
Show 22438+3026 CHE 399 267 4.4 18
Show 22421+3025 CHE 376 310 19.9 18
Show 22441+3023 CHE 402 345 23.3 18
Show 22424+3025 CHE 380 219 27.9 20
Show 22415+3002 CHE 363 183 22.2 23
Show 22413+3012 CHE 358 65 10.6 23
Show 22415+3003 STF2932 AB 283 22.2 23
Show 22415+3003 STF2932 AC 13 30.0 23
Show 22443+2957 CHE 407 219 24.6 24
Show 22421+2951 SHN 262 -1 0.0 26
Show 22428+2947 CHE 387 277 25.6 27
Show 22409+3020 CHE 351 223 7.9 29
Show 22430+2944 CHE 393 124 13.7 30
Show 22442+2937 CHE 406 201 16.0 30
Show 22451+3003 CHE 415 232 11.8 30
Show 22426+2943 BU 710 246 0.5 31
Show 22418+3041 CHE 370 AB 206 11.2 32
Show 22418+3041 CHE 370 AC 157 28.9 32
Show 22407+3020 CHE 347 48 8.3 32
Show 22410+3032 BKO 657 161 7.1 32
Show 22432+2941 CHE 395 284 18.1 32
Show 22416+2947 CHE 366 6 21.8 33
Show 22429+3045 CHE 390 89 30.3 33
Show 22407+2959 STF3134 77 6.4 33
Show 22412+2950 CHE 356 183 20.7 34
Show 22410+3034 CHE 354 AB 298 32.8 34
Show 22410+3034 BKO 656 AC 286 12.8 34
Show 22409+3033 CHE 350 97 22.0 34
Show 22444+3042 CHE 409 249 28.3 34
Show 22410+3034 BKO 656 BC 126 20.5 34
Show 22456+3027 FYM 144 CE 318 10.4 36
Show 22441+2940 CHE 403 150 24.0 36
Show 22456+3027 CHE 418 AB 28 52.1 36
Show 22456+3027 FYM 144 AC 281 33.9 36

 
 
WDS 22430+3013 : COMPONENTS
 
 
  A Ab B C D E F G H I
Ab pa=27.8°
sep=0.05"
 
B pa=338.1°
sep=92.89"
pa=338.1°
sep=92.85"
 
C pa=338.2°
sep=92.83"
pa=338.2°
sep=92.80"
pa=83.7°
sep=0.20"
 
D pa=331.1°
sep=154.20"
pa=331.1°
sep=154.17"
pa=320.7°
sep=63.04"
pa=320.6°
sep=63.15"
 
E pa=330.8°
sep=148.98"
pa=330.8°
sep=148.95"
pa=319.0°
sep=58.08"
pa=318.8°
sep=58.19"
pa=160.2°
sep=5.29"
 
F pa=344.4°
sep=147.76"
pa=344.4°
sep=147.73"
pa=354.9°
sep=56.38"
pa=354.7°
sep=56.37"
pa=78.1°
sep=35.66"
pa=69.6°
sep=35.32"
 
G pa=271.5°
sep=119.05"
pa=271.5°
sep=119.07"
pa=225.4°
sep=118.43"
pa=225.5°
sep=118.58"
pa=198.6°
sep=139.18"
pa=200.0°
sep=135.08"
pa=209.7°
sep=160.27"
 
H pa=149.3°
sep=80.39"
pa=149.3°
sep=80.42"
pa=154.0°
sep=172.76"
pa=154.1°
sep=172.70"
pa=150.5°
sep=234.57"
pa=150.3°
sep=229.35"
pa=159.1°
sep=226.33"
pa=114.3°
sep=175.65"
 
I pa=156.0°
sep=91.56"
pa=156.0°
sep=91.59"
pa=157.1°
sep=184.41"
pa=157.1°
sep=184.36"
pa=152.9°
sep=245.55"
pa=152.8°
sep=240.30"
pa=161.2°
sep=238.70"
pa=119.0°
sep=178.74"
pa=194.8°
sep=15.04"
 
J pa=37.6°
sep=94.26"
pa=37.6°
sep=94.21"
pa=97.1°
sep=92.82"
pa=97.2°
sep=92.63"
pa=114.6°
sep=145.13"
pa=113.0°
sep=141.48"
pa=124.9°
sep=118.36"
pa=67.9°
sep=190.46"
pa=6.5°
sep=144.72"
pa=7.3°
sep=159.61"
 
 
22430+3013 A
 
 
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
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
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
Hipparcos
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 13.11 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 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
Hipparcos 2
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 E Hpmag 0.0004
SHp 0.004 VA 0 BV 0.852 E BV 0.008
VI 0.87
 
 
22430+3013 Ab
 
 
Coord arcsec 2000 224300.13+301316.7 Mag 6.9 Delta magnitude 2.8 Coordinate calculated yes
 
 
22430+3013 B
 
 
Coord arcsec 2000 224257.46+301442.9 Mag 10.6 Spectral class G5 (yellow) PmRA -6.00
PmDE -7.0 Delta magnitude 6.5
 
 
22430+3013 C
 
 
Coord arcsec 2000 224257.48+301442.9 Mag 10.6 Delta magnitude 6.5 Coordinate calculated yes
 
 
22430+3013 D
 
 
Coord arcsec 2000 224254.38+301531.7 Coord calc 224254.38+301531.7 Mag 14.5 PmRA -6.00
PmDE 5.0 Delta magnitude 10.4
 
 
22430+3013 E
 
 
Coord arcsec 2000 224254.52+301526.7 Mag 15.5 Delta magnitude 11.4 Coordinate calculated yes
 
 
22430+3013 F
 
 
Coord arcsec 2000 224257.07+301539.1 Mag 14.2 PmRA -12.00 PmDE 2.0
Delta magnitude 10.1 Coordinate calculated yes
 
 
22430+3013 G
 
 
Coord arcsec 2000 224250.95+301319.8 Mag 13.5 PmRA -10.00 PmDE -24.0
Delta magnitude 9.4 Coordinate calculated yes
 
 
22430+3013 H
 
 
Coord arcsec 2000 224303.30+301207.6 Coord calc 224303.30+301207.6 Mag 14.2 PmRA 26.00
PmDE -19.0 Delta magnitude 10.1
 
 
22430+3013 I
 
 
Coord arcsec 2000 224303.00+301153.1 Mag 14.7 PmRA 5.00 PmDE -3.0
Delta magnitude 10.6 Coordinate calculated yes
 
 
22430+3013 J
 
 
Coord arcsec 2000 224304.57+301431.4 Mag 15 PmRA 8.00 PmDE -21.0
Delta magnitude 10.9 Coordinate calculated yes