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Doubles in session


Current system
04252+1716
AST 4


Nearby doubles
16' : 04247+1704
SKF2119

17' : 04244+1705
OCC 615

19' : 04258+1733
RED 4

20' : 04241+1727
BUP 56AB

26' : 04245+1653
PAT 6

29' : 04267+1735
KPP 109

31' : 04264+1651
OCC 553

32' : 04233+1701
CBL 224

35' : 04277+1719
LDS2242

37' : 04230+1732
BUP 55AB
Secunda Hyadum

38' : 04267+1645
GUE 4

40' : 04255+1756
KUI 17AB

46' : 04255+1631
LDS2234

46' : 04258+1800
COU2682

47' : 04234+1638
OCC 527

52' : 04288+1717
OCC 532

54' : 04285+1742
GUE 5

55' : 04215+1704
BPM 99

56' : 04242+1623
MET 38

58' : 04271+1626
LDS2240

59' : 04212+1703
LDS3579

60' : 04215+1648
OCC 528

60' : 04267+1811
LDS1170

62' : 04293+1733
CIA 27

62' : 04280+1629
SKF2121

63' : 04271+1812
STF 545AB



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

04252+1716 AST 4

 
 
04h 25m 13.54s +17° 16' 05.5" P.A. 264.00 sep 0.1 mag 14.00,14.00 Sp M3.5V+dM+
 
 
Coord 2000 04252+1716 Discov num AST   4 Comp Coord arcsec 2000 04 25 13.54 +17 16 05.5
Date first 1994 Date last 2020 Obs 17
Pa first 292 Pa last 263.7 P.A. Now (θ) 263.7°
Sep first 0.1 Sep last 0.073 Sep. Now (ρ) 0.073"
Mag pri 14.00 Mag sec 14.00 delta mag (ΔM) 0 Spectral class M3.5V+dM+ (red)
Pri motion ra +115 Sec motion ra
Pri motion dec -025 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus
 
 
ORBITAL ELEMENTS
 
 
Period (P)2.705y± 0.004 Periastron (T)51522.4d (1999.939y)± 2.5 Semi-major axis (a)45.5m± 0.6
Eccentricity (e)0.79± 0.006 Inclination (i)14°± 8 Longitude of periastron (ω)149°± 13
Node (Ω)289.5°± 0.9 Notesn ReferenceAST2021
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 158.1 0.015
2001 251.8 0.078
2002 279.7 0.065
2003 222.9 0.046
2004 259.3 0.081
2005 295.1 0.047
2006 238.7 0.064
2007 266.9 0.078
2008 3.1 0.014
2009 248.6 0.075
2010 275.6 0.070
2011 211.5 0.036
2012 256.4 0.080
2013 287.8 0.055
2014 233.8 0.058
2015 263.9 0.080
2016 316.5 0.029
2017 245.1 0.072
2018 272.0 0.074
2019 189.0 0.023
2020 253.5 0.079
2021 282.3 0.062
2022 227.4 0.051
2023 261.0 0.081
2024 300.7 0.041
2025 241.2 0.067
2026 268.7 0.077
2027 98.8 0.010
2028 250.4 0.077
2029 277.8 0.068
2030 218.6 0.042


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds04252%2B1716a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04252+1716 AST 4 : NOTES
 
 
discov_num notes refcode
AST 4 V805 Tau.
The visual A consists of an M3.5V main sequence star (A) and an
unresolved WD (D) with a period of 20.82d. B consists of a pair of
unresolved M dwarfs with an orbital period of 0.75d. V band fits of the
masses of A, B and C are 0.46, 0.40 and 0.38 \msun, respectively. K
band fits of the masses of A, B, C and D are 0.60, 0.46, 0.44 and 0.53,
respectively. AST2021
 
 
REFERENCES
 
 
refcode metd author reference
AST2021 Hf - Benedict, G.F., Franz, O.G., Horch, E.P., Prato, L., Torres, G., McArthur, B.E., 2021AJ....161..285B
AST2021 +orb Wasserman, L.H., Latham, D.W., Stefanik, R.P., Latham, C. & Skiff, B.A.
AST2021 +S AJ 161, 285, 2021
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04252+1716 AST 4 2020 17 264 0.1 14.00 14.00 M3.5V+dM+ NO 042513.54+171605.5

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

 
 
WDS 04252+1716 AST 4 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04252+1716 AST 4 : MEASURES
 
 
No records found.

 
 
WDS 04252+1716 : VIRTUAL EYEPIECE
 
 

04252+1716 AST 4A mag 14 Sp M3.5V 04252+1716 AST 4B mag 14 Sp dM 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 04252+1716 : ALADIN DSS IMAGE @ 04h 25m 13.54s +17° 16' 05.5"
 
 
 
 
WDS 04252+1716 AST 4 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04252+1716 AST 4 distance=1' 04247+1704 SKF2119 distance=16' 04244+1705 OCC 615 distance=17' 04258+1733 RED 4 distance=19' 04241+1727 BUP 56AB distance=20' 04241+1727 DRS 37AC distance=20' 04241+1727 OCC 952Aa,Ab distance=20' 04245+1653 PAT 6 distance=26' 04267+1735 KPP 109 distance=29' 04264+1651 OCC 553 distance=31' 04233+1701 CBL 224 distance=32' 04277+1719 LDS2242 distance=35' 04230+1732 CHR 262Aa,Ab (Secunda Hyadum) distance=37' 04230+1732 BUP 55AB (Secunda Hyadum) distance=37' 04230+1732 OCC 255Aa,Ac (Secunda Hyadum) distance=37' 04267+1645 GUE 4 distance=38' 04255+1756 KUI 17AB distance=40' 04255+1756 H 6 101AC distance=40' 04255+1756 ARN 62AD distance=40' 04255+1756 H 6 101AE distance=40' 04255+1631 LDS2234 distance=46' 04258+1800 COU2682 distance=46' 04234+1638 OCC 527 distance=47' 04288+1717 OCC 532 distance=52' 04285+1742 GUE 5 distance=54' 04215+1704 BPM 99 distance=55' 04242+1623 MET 38 distance=56' 04271+1626 LDS2240 distance=58' 04212+1703 LDS3579 distance=59' 04215+1648 OCC 528 distance=60' 04267+1811 LDS1170 distance=60' 04293+1733 CIA 27 distance=62' 04280+1629 SKF2121 distance=62' 04271+1812 KOH 11Aa,Ab distance=63' 04271+1812 STF 545AB distance=63' 04206+1702 LDS3577 distance=68' 04298+1741 COU 567 distance=70' 04295+1752 BGH 2AB distance=71' 04284+1622 RCH 2 distance=72' 04203+1731 GRV1270 distance=72' 04295+1752 OCC 483Ba,Bb distance=73' 04283+1618 OCC9091 distance=74' 04223+1820 LDS2229 distance=77' 04251+1559 LDS5554 distance=78' 04288+1617 BPMA 8AG distance=79' 04288+1617 RAO 547Aa,Ab distance=79' 04288+1617 RAO 547AH distance=79' 04256+1556 FIN 342Aa,Ab distance=80' 04256+1556 BUP 57AB distance=80' 04284+1822 LDS5564 distance=81' 04256+1838 COU2681AB distance=82' 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 04252+1716 AST 4 264 0.1 1
Show 04247+1704 SKF2119 356 4.9 16
Show 04244+1705 OCC 615 -1 -1.0 17
Show 04258+1733 RED 4 80 0.3 19
Show 04241+1727 BUP 56 AB 249 147.2 20
Show 04241+1727 DRS 37 AC 85 10.0 20
Show 04241+1727 OCC 952 Aa,Ab -1 0.0 20
Show 04245+1653 PAT 6 235 1.3 26
Show 04267+1735 KPP 109 79 3.8 29
Show 04264+1651 OCC 553 -1 0.0 31
Show 04233+1701 CBL 224 335 28.3 32
Show 04277+1719 LDS2242 204 14.1 35
Show Secunda Hyadum 04230+1732 CHR 262 Aa,Ab 2 0.5 37
Show Secunda Hyadum 04230+1732 BUP 55 AB 336 112.8 37
Show Secunda Hyadum 04230+1732 OCC 255 Aa,Ac -1 0.0 37
Show 04267+1645 GUE 4 192 0.4 38
Show 04255+1756 KUI 17 AB 343 1.8 40
Show 04255+1756 H 6 101 AC 236 77.0 40
Show 04255+1756 ARN 62 AD 40 412.8 40
Show 04255+1756 H 6 101 AE 335 137.3 40
Show 04255+1631 LDS2234 44 25.0 46
Show 04258+1800 COU2682 83 0.1 46
Show 04234+1638 OCC 527 -1 0.1 47
Show 04288+1717 OCC 532 -1 0.5 52
Show 04285+1742 GUE 5 75 1.7 54
Show 04215+1704 BPM 99 276 110.7 55
Show 04242+1623 MET 38 257 2.1 56
Show 04271+1626 LDS2240 127 3.1 58
Show 04212+1703 LDS3579 262 60.5 59
Show 04215+1648 OCC 528 -1 0.1 60
Show 04267+1811 LDS1170 240 22.4 60
Show 04293+1733 CIA 27 -1 -1.0 62
Show 04280+1629 SKF2121 292 2.2 62
Show 04271+1812 KOH 11 Aa,Ab 191 0.1 63
Show 04271+1812 STF 545 AB 58 19.0 63
Show 04206+1702 LDS3577 83 69.9 68
Show 04298+1741 COU 567 148 0.1 70
Show 04295+1752 BGH 2 AB 9 109.5 71
Show 04284+1622 RCH 2 30 0.0 72
Show 04203+1731 GRV1270 184 0.8 72
Show 04295+1752 OCC 483 Ba,Bb -1 0.4 73
Show 04283+1618 OCC9091 -1 0.1 74
Show 04223+1820 LDS2229 234 3.5 77
Show 04251+1559 LDS5554 277 4.4 78
Show 04288+1617 BPMA 8 AG 33 246.3 79
Show 04288+1617 RAO 547 Aa,Ab 96 0.7 79
Show 04288+1617 RAO 547 AH 175 2.0 79
Show 04256+1556 FIN 342 Aa,Ab 157 0.1 80
Show 04256+1556 BUP 57 AB 339 129.5 80
Show 04284+1822 LDS5564 169 34.5 81
Show 04256+1838 COU2681 AB 253 1.1 82

 
 
WDS 04252+1716 : COMPONENTS
 
 
  A
B pa=263.4°
sep=0.07"
 
 
04252+1716 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 042513.54+171605.5 Mag 14 Spectral class M3.5V (red)
PmRA 115.00 PmDE -25.0
 
 
04252+1716 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 042513.54+171605.5 Mag 14 Spectral class dM
Calc coord yes