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Doubles in session


Current system
20257+4004
TOR 25 AB
HD 194720


Nearby doubles
4' : 20255+4006
D 22AB

5' : 20253+4003
MLB 22

10' : 20254+4014
MLR 1

12' : 20248+4009
HO 278

15' : 20259+4019
ALI1142

16' : 20244+4002
MLB 21

23' : 20272+3949
ES 1976

24' : 20272+3948
SEI1127

27' : 20264+4029
MLB1087

28' : 20280+3958
TDT2299

30' : 20283+4005
COU2538

36' : 20237+3937
ALI1141

39' : 20251+4042
TDT2253

40' : 20263+3925
ES 1975

40' : 20277+3932
TDT2292

41' : 20278+4036
TDT2294

43' : 20294+4011
ALV 6

43' : 20296+4021
STN 50

45' : 20231+4037
TDT2228

45' : 20283+4038
TDT2306

50' : 20259+3914
SEI1122

51' : 20215+3950
SEI1103

51' : 20301+4007
ES 245

51' : 20299+4022
HJ 1525AB

52' : 20232+4046
ES 1677

53' : 20286+3923
TDT2315



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20257+4004 TOR 25 AB (HD 194720)

 
 
20h 25m 44.56s +40° 03' 59.0" P.A. 191.00 sep 4.7 mag 8.73,10.50 Sp A0
 
 
Coord 2000 20257+4004 Discov num TOR  25 Comp AB Coord arcsec 2000 20 25 44.56 +40 03 59.0
Date first 1977 Date last 2015 Obs 9
Pa first 208 Pa last 190.8 P.A. Now (θ) 190.8°
Sep first 10.6 Sep last 4.669 Sep. Now (ρ) 4.669"
Mag pri 8.73 Mag sec 10.50 delta mag (ΔM) 1.77 Spectral class A0 (white)
Pri motion ra +000 Sec motion ra -003
Pri motion dec -011 Sec motion dec -015
Notes N (See Notes)
rPM=0.327
Nature of this double is uncertain.
 
 
20257+4004 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 194720 20 25 45 +40 03 59 TOR 25 AB 2015 9 191 4.7 8.73 10.50 1.77 <===
Show 20 25 45 +40 03 59 POP 199 AC 2015 8 245 59.6 8.73 11.94 3.21
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194720 Constellation Cygnus Tycho2 3156-00461-1 Gaia DR2 2067290187612516608
HD 194720
 
 
WDS 20257+4004 TOR 25 AB (HD 194720) : NOTES
 
 
discov_num notes refcode
TOR 25 Formerly known as PAN 22.
 
 
REFERENCES
 
 
refcode metd author reference
Pop1967 Ma j Popovic, G.M. 1967BOBeo..26...67P
Pop1967 Bull. Obs. Astron. Belgrade 26, 67, 1967
Pop1969a Ma j Popovic, G.M. 1969BOBeo..27....1P
Pop1969a Bull. Obs. Astron. Belgrade 27, #1, 1, 1969
Pop1969b orb - Popovic, G.M. 1969BOBeo..27...33P
Pop1969b Bull. Obs. Astron. Belgrade 27, #1, 33-54, 1969
Pop1969c Ma j Popovic, G.M. 1969BOBeo..27...67P
Pop1969c Bull. Obs. Astron. Belgrade 27, #1, 67, 1969
Pop1969d orb - Popovic, G.M. 1969IAUDS..49....1P
Pop1969d Inf. Circ. 49, 1, 1969
Pop1970a Ma j Popovic, G.M. 1970BOBeo..28...69P
Pop1970a Bull. Obs. Astron. Belgrade 28, 69, 1970
Pop1970b Ma j Popovic, G.M. 1970BOBeo..28...81P
Pop1970b Bull. Obs. Astron. Belgrade 28, 81, 1970
Pop1970c orb - Popovic, G.M. 1970BOBeo..28..141P
Pop1970c Bull. Obs. Astron. Belgrade 28, 141, 1970
Pop1972 orb - Popovic, G.M. 1972BOBeo..29...31P
Pop1972 Bull. Obs. Astron. Belgrade 29, 31, 1972/3
Pop1973a Ma j Popovic, G.M. 1973BOBeo..29...37P
Pop1973a Bull. Obs. Astron. Belgrade 29, 37, 1973
Pop1973b Ma j Popovic, G.M. 1973BOBeo..29...44P
Pop1973b Bull. Obs. Astron. Belgrade 29, 44, 1973
Pop1975a Ma j Popovic, G.M. 1975BOBeo.126...35P
Pop1975a Bull. Obs. Astron. Belgrade #126, 35, 1975
Pop1975b Ma j Popovic, G.M. 1975BOBeo.126...47P
Pop1975b Bull. Obs. Astron. Belgrade #126, 47, 1975
Pop1976 orb - Popovic, G.M. 1976BOBeo.127...11P
Pop1976 Bull. Obs. Astron. Belgrade #127, 11, 1976
Pop1977a Ma - Popovic, G.M. 1977BOBeo.128...30P
Pop1977a Bull. Obs. Astron. Belgrade #128, 30, 1977
Pop1977b Ma j Popovic, G.M. 1977BOBeo.128...37P
Pop1977b Bull. Obs. Astron. Belgrade #128, 37, 1977
Pop1978 orb - Popovic, G.M. 1978BOBeo.129....9P
Pop1978 Bull. Obs. Astron. Belgrade #129, 9, 1978
Pop1979 Ma - Popovic, G.M. 1979BOBeo.130...28P
Pop1979 Bull. Obs. Astron. Belgrade #130, 28, 1979
Pop1980 orb - Popovic, G.M. 1980IAUDS..81....1P
Pop1980 Inf. Circ. 81, 1, 1980
Pop1981a Ma j Popovic, G.M. 1981BOBeo.131...23P
Pop1981a Bull. Obs. Astron. Belgrade #131, 23, 1981
Pop1981b orb - Popovic, G.M. 1981IAUDS..85....1P
Pop1981b Inf. Circ. 85, 1, 1981
Pop1981c orb - Popovic, G.M. 1981BOBeo.131...15P
Pop1981c Bull. Obs. Astron. Belgrade #131, 15, 1981
Pop1982a orb - Popovic, G.M. 1982BOBeo.132...13P
Pop1982a Bull. Obs. Astron. Belgrade #132, 13, 1982
Pop1982b Ma j Popovic, G.M. 1982BOBeo.132...34P
Pop1982b Bull. Obs. Astron. Belgrade #132, 34, 1982
Pop1982c orb - Popovic, G.M. 1982IAUDS..86....1P
Pop1982c Inf. Circ. 86, 1, 1982
Pop1983a orb - Popovic, G.M. 1983BOBeo.133...27P
Pop1983a Bull. Obs. Astron. Belgrade #133, 27, 1983
Pop1983b orb - Popovic, G.M. 1983IAUDS..91....1P
Pop1983b Inf. Circ. 91, 1, 1983
Pop1983c Ma j Popovic, G.M. 1983BOBeo.133...31P
Pop1983c Bull. Obs. Astron. Belgrade #133, 31, 1983
Pop1984 Ma j Popovic, G.M. 1984BOBeo.134...60P
Pop1984 Bull. Obs. Astron. Belgrade #134, 60, 1984
Pop1986a Ma u Popovic, G.M. 1986BOBeo.136...49P
Pop1986a Bull. Obs. Astron. Belgrade #136, 49, 1986
Pop1986b orb - Popovic, G.M. 1986IAUDS..98....1P
Pop1986b Inf. Circ. 98, 1, 1986
Pop1986c Ma u Popovic, G.M. 1986BOBeo.136...84P
Pop1986c Bull. Obs. Astron. Belgrade #136, 84, 1986
Pop1986d orb - Popovic, G.M. 1986IAUDS.100....1P
Pop1986d Inf. Circ. 100, 1, 1986
Pop1987 orb - Popovic, G.M. 1987BOBeo.137...82P
Pop1987 Bull. Obs. Astron. Belgrade #137, 82, 1987
Pop1988 Ma u Popovic, G.M. 1988BOBeo.138...55P
Pop1988 Bull. Obs. Astron. Belgrade #138, 55, 1988
Pop1989a Ma u Popovic, G.M. 1989BOBeo.140...83P
Pop1989a Bull. Obs. Astron. Belgrade #140, 83, 1989
Pop1989b orb - Popovic, G.M. & Catovic, Z. 1989IAUDS.107....1P
Pop1989b Inf. Circ. 107, 1, 1989
Pop1989c orb - Popovic, G.M. & Catovic, Z. 1989IAUDS.109....1P
Pop1989c Inf. Circ. 109, 1, 1989
Pop1990 orb - Popovic, G.M. & Catovic, Z. 1990IAUDS.112....1P
Pop1990 Inf. Circ. 112, 1, 1990
Pop1991 Ma u Popovic, G.M. 1991BOBeo.144...39P
Pop1991 Bull. Obs. Astron. Belgrade #144, 39, 1991
Pop1993 Ma u Popovic, G.M. & Zulevic, D.J. 1993BOBeo.147...45P
Pop1993 Bull. Obs. Astron. Belgrade #147, 45, 1993
Pop1994 Ma u Popovic, G.M. 1994BOBeo.150..109P
Pop1994 Bull. Obs. Astron. Belgrade #150, 109, 1994
Pop1995a orb - Popovic, G.M. & Pavlovic, R. 1995IAUDS.125....2P
Pop1995a Inf. Circ. 125, 2, 1995
Pop1995b orb - Popovic, G.M. & Pavlovic, R. 1995IAUDS.126....1P
Pop1995b Inf. Circ. 126, 1, 1995
Pop1995c orb - Popovic, G.M. & Pavlovic, R. 1995IAUDS.127....1P
Pop1995c Inf. Circ. 127, 1, 1995
Pop1995d orb - Popovic, G.M. & Pavlovic, R. 1995BOBeo.151...45P
Pop1995d Bull. Obs. Astron. Belgrade #151, 45, 1995
Pop1996a orb - Popovic, G.M. & Pavlovic, R. 1996IAUDS.128....1P
Pop1996a Inf. Circ. 128, 1, 1996
Pop1996b orb - Popovic, G.M. & Pavlovic, R. 1996BOBeo.153...57P
Pop1996b Bull. Obs. Astron. Belgrade #153, 57, 1996
Pop1996c orb - Popovic, G.M. & Zivkov, V. 1996IAUDS.130....1P
Pop1996c Inf. Circ. 130, 1, 1996
Pop1997a Ma u Popovic, G.M. & Pavlovic, R. 1997A&AS..123..487P
Pop1997a +C A&AS 123, 487, 1997
Pop1997b Ma u Popovic, G.M. & Pavlovic, R. 1997BOBeo.155...97P
Pop1997b Bull. Obs. Astron. Belgrade #155, 97, 1997
Pop1997c orb - Popovic, G.M. & Pavlovic, R. 1997IAUDS.131R...1P
Pop1997c Inf. Circ. 131, 1, 1997
Pop1997d orb - Popovic, G.M. & Zivkov, V. 1997IAUDS.131Q...1P
Pop1997d Inf. Circ. 131, 1, 1997
Pop1997e orb - Popovic, G.M. & Pavlovic, R. 1997IAUDS.132....1P
Pop1997e Inf. Circ. 132, 1, 1997
Pop1997f orb - Popovic, G.M., Pavlovic, R., & Zivkov, V. 1997BOBeo.156..189P
Pop1997f Bull. Obs. Astron. Belgrade #156, 189, 1997
Pop1998a orb - Popovic, G.M. & Zivkov, V. 1998IAUDS.135Q...2P
Pop1998a Inf. Circ. 135, 2, 1998
Pop1998b orb - Popovic, G.M. 1998IAUDS.136....2P
Pop1998b Inf. Circ. 136, 2, 1998
Pop1998c orb - Popovic, G.M. & Pavlovic, R. 1998IAUDS.136R...1P
Pop1998c Inf. Circ. 136, 1, 1998
Pop1998d Ma u Popovic, G.M. (Popovic & Pavlovic) 1998SerAJ.158...67P
Pop1998d +C SerAJ 158, 67, 1998
Pop2000a orb - Popovic, G.M., Pavlovic, R., & Zivkov, V. 2000A&AS..144..211P
Pop2000a A&AS 144, 211, 2000
Pop2000b Ma u Popovic, G.M. (Zulevic et al.) 2000SerAJ.161...25Z
Pop2000b SerAJ 161, 25, 2000
Pop2001 Ma u Popovic, G.M. 2001SerAJ.163...49P
Pop2001 SerAJ 163, 49, 2001
Pop2002a orb - Popovic, G.M. & Olevic, D. 2002IAUDS.146....2P
Pop2002a Inf. Circ. 146, 2, 2002
Pop2002b orb - Popovic, G.M. & Olevic, D. 2002IAUDS.147....2P
Pop2002b Inf. Circ. 147, 2, 2002
Pop2006 C u Popovic, G.M. (Cvetkovic, Z., Novakovic, B. Strigachev, A. & Popovic, G.M. 2006SerAJ.172...53C
Pop2006 SerAJ 172, 53, 2006
Pop2007 C u Popovic, G.M. (Cvetkovic, Z., Pavlovic, R., Strigachev, A., Novakovic, B., & 2007SerAJ.174...83C
Pop2007 Popovic, G.M.)
Pop2007 SerAJ 174, 83, 2007
Tor (Torino Observatory)
Tor1978a Po j Armanelli, Delgrosso, A., & Pannunzio, R. 1978A&AS...31..121A
Tor1978a A&AS 31, 121, 1978
Tor1978b Po - Delgrosso, A. & Pannunzio, R. 1978A&AS...34..403D
Tor1978b A&AS 34, 403, 1978
Tor1980 Po - Pannunzio, R. & Siciliano, F. 1980A&AS...41..319P
Tor1980 A&AS 41, 319, 1980
Tor1982 Po j Pannunzio, R. & Siciliano, F. 1982A&AS...47..159P
Tor1982 A&AS 47, 159, 1982
Tor1983 Po j Pannunzio, R. & Morbidelli, R. 1983A&AS...51...63P
Tor1983 A&AS 51, 63, 1983
Tor1983b Po j Pannunzio, R. & Morbidelli, R. 1983A&AS...54..489P
Tor1983b A&AS 54, 489, 1983
Tor1984 Po j Pannunzio, R. & Morbidelli, R. 1984A&AS...55..455P
Tor1984 A&AS 55, 455, 1984
Tor1985 Po j Pannunzio, R. & Morbidelli, R. 1985A&AS...61...37P
Tor1985 A&AS 61, 37, 1985
Tor1992 Pa - Pannunzio, R., Morbidelli, R., Massone, G., Lattanzi, M.G., Sarasso, M., & 1992A&AS...96..143P
Tor1992 +Po Chiumiento, G.
Tor1992 A&AS 96, 143, 1992
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20257+4004 TOR 25 AB 1998 4 202 7.3 8.73 10.50 A0 N D 202544.56+400359.0
20257+4004 TOR 25 AB 2010 5 195 5.2 8.73 10.50 A0 N D 202544.56+400359.0
20257+4004 TOR 25 AB 2012 8 192 4.8 8.73 10.50 A0 N 202544.56+400359.0
20257+4004 TOR 25 AB 2015 9 191 4.7 8.73 10.50 A0 N 202544.56+400359.0

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

 
 
WDS 20257+4004 TOR 25 AB (HD 194720) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20257+4004 TOR 25 AB (HD 194720) : MEASURES
 
 
No records found.

 
 
WDS 20257+4004 (HD 194720) : VIRTUAL EYEPIECE
 
 

20257+4004 TOR 25A mag 8.73 Sp A0 20257+4004 TOR 25B sep 4.6 P.A. 188.30 mag 10.5 20257+4004 POP 199C sep 48.4 P.A. 238.40 mag 11.94 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 20257+4004 (HD 194720) : ALADIN DSS IMAGE @ 20h 25m 44.56s +40° 03' 59.0"
 
 
 
 
WDS 20257+4004 TOR 25 AB (HD 194720) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20257+4004 TOR 25AB distance=0' 20255+4006 D 22AB distance=4' 20255+4006 D 22AC distance=4' 20255+4006 POP 224AD distance=4' 20253+4003 MLB 22 distance=5' 20254+4014 MLR 1 distance=10' 20248+4009 HO 278 distance=12' 20259+4019 ALI1142 distance=15' 20244+4002 MLB 21 distance=16' 20272+3949 ES 1976 distance=23' 20272+3948 SEI1127 distance=24' 20264+4029 MLB1087 distance=27' 20280+3958 TDT2299 distance=28' 20283+4005 COU2538 distance=30' 20237+3937 ALI1141 distance=36' 20251+4042 TDT2253 distance=39' 20263+3925 ES 1975 distance=40' 20277+3932 TDT2292 distance=40' 20278+4036 TDT2294 distance=41' 20222+4015 BU 665A,BC (Sadr) distance=42' 20222+4015 BU 665BC,D distance=42' 20222+4015 BU 665BC distance=42' 20294+4011 ALV 6 distance=43' 20296+4021 STN 50 distance=43' 20231+4037 TDT2228 distance=45' 20283+4038 TDT2306 distance=45' 20259+3914 SEI1122 distance=50' 20215+3950 SEI1103 distance=51' 20301+4007 ES 245 distance=51' 20299+4022 HJ 1525AB distance=51' 20299+4022 HJ 1525AC distance=51' 20232+4046 ES 1677 distance=52' 20231+4047 J 787CD distance=53' 20286+3923 TDT2315 distance=53' 20231+4047 J 787AB distance=53' 20231+4047 J 787AC distance=53' 20231+4047 J 787AD distance=53' 20298+3939 LSC 90 distance=53' 20235+3918 SEI1111 distance=53' 20231+4048 GRF 15 distance=54' 20290+3924 ALI1144 distance=55' 20241+3912 SEI1115 distance=56' 20239+3912 J 129 distance=56' 20306+4015 STJ 84 distance=57' 20271+3910 TDT2284 distance=57' 20232+4052 CIA 46 distance=57' 20271+3909 ALI 932 distance=57' 20221+4042 ES 1676 distance=58' 20292+3919 SEI1134 distance=60' 20230+3913 STTA206AB distance=61' 20230+3913 STTA206AD distance=61' 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 20257+4004 TOR 25 AB 191 4.7
Show 20257+4004 POP 199 AC 245 59.6
Show 20255+4006 D 22 AB 163 2.9 4
Show 20255+4006 D 22 AC 114 18.1 4
Show 20255+4006 POP 224 AD 98 71.2 4
Show 20253+4003 MLB 22 227 6.2 5
Show 20254+4014 MLR 1 213 0.4 10
Show 20248+4009 HO 278 70 0.1 12
Show 20259+4019 ALI1142 56 12.1 15
Show 20244+4002 MLB 21 15 8.8 16
Show 20272+3949 ES 1976 79 3.8 23
Show 20272+3948 SEI1127 116 26.3 24
Show 20264+4029 MLB1087 98 9.5 27
Show 20280+3958 TDT2299 8 0.5 28
Show 20283+4005 COU2538 31 1.0 30
Show 20237+3937 ALI1141 21 11.5 36
Show 20251+4042 TDT2253 239 2.4 39
Show 20263+3925 ES 1975 26 4.1 40
Show 20277+3932 TDT2292 167 0.5 40
Show 20278+4036 TDT2294 310 2.2 41
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 42
Show 20222+4015 BU 665 BC,D 131 41.0 42
Show 20222+4015 BU 665 BC 302 1.9 42
Show 20294+4011 ALV 6 259 0.6 43
Show 20296+4021 STN 50 170 6.3 43
Show 20231+4037 TDT2228 242 0.4 45
Show 20283+4038 TDT2306 156 1.1 45
Show 20259+3914 SEI1122 271 27.6 50
Show 20215+3950 SEI1103 223 17.0 51
Show 20301+4007 ES 245 158 4.1 51
Show 20299+4022 HJ 1525 AB 234 9.2 51
Show 20299+4022 HJ 1525 AC 39 17.1 51
Show 20232+4046 ES 1677 270 7.4 52
Show 20231+4047 J 787 CD 292 25.3 53
Show 20286+3923 TDT2315 141 1.5 53
Show 20231+4047 J 787 AB 165 2.6 53
Show 20231+4047 J 787 AC 112 9.5 53
Show 20231+4047 J 787 AD 293 15.8 53
Show 20298+3939 LSC 90 335 0.1 53
Show 20235+3918 SEI1111 10 25.3 53
Show 20231+4048 GRF 15 139 199.3 54
Show 20290+3924 ALI1144 165 11.6 55
Show 20241+3912 SEI1115 181 23.6 56
Show 20239+3912 J 129 35 3.3 56
Show 20306+4015 STJ 84 34 1.2 57
Show 20271+3910 TDT2284 101 1.9 57
Show 20232+4052 CIA 46 14 0.0 57
Show 20271+3909 ALI 932 194 14.2 57
Show 20221+4042 ES 1676 285 2.4 58
Show 20292+3919 SEI1134 32 3.8 60
Show 20230+3913 STTA206 AB 254 43.7 61

 
 
WDS 20257+4004 : COMPONENTS
 
 
  A B
B pa=188.3°
sep=4.63"
 
C pa=238.4°
sep=48.41"
pa=242.9°
sep=45.58"
 
 
20257+4004 A
 
 
Name HD 194720 Coord arcsec 2000 202544.56+400359.0 Mag 8.73 Spectral class A0 (white)
PmRA 0.00 PmDE -11.0 Tycho2 3156-00461-1 HD 194720
Tycho2
Tycho2 3156-00461-1 Pflag RAmdeg 306.43569161 DEmdeg 40.06641301
PmRA 0.1 PmDE -10.8 E RAmdeg 7 E DEmdeg 7
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.27 EpDEm 1991.22
Num 8 Q RAmdeg 0.6 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 8.838 E BTmag 0.017 VTmag 8.732
E VTmag 0.014 Prox 999 TYC T HIP
CCDM RAdeg 306.43569139 DEdeg 40.06643806 EpRA 1990 1.71
EpDE 1990 1.65 E RAdeg 7.1 E DEdeg 7.2 Posflg
Corr 0.1
 
 
20257+4004 B
 
 
Coord arcsec 2000 202544.50+400354.4 Mag 10.5 PmRA -3.00 PmDE -15.0
Calc delta mag 1.77 Calc coord yes
 
 
20257+4004 C
 
 
Coord arcsec 2000 202540.97+400333.6 Mag 11.94 PmRA -9.00 PmDE -8.0
Calc delta mag 3.21 Calc coord yes