14450+2704 STF 1877 AC
14h 44m 59.14s +27° 04' 29.9" P.A. 254.00 sep 174.1 mag 2.58,12.58 Sp K0II-III dist. 62.11 pc (202.6 l.y.)
Coord 2000 |
14450+2704 |
|
Discov num |
STF1877 |
|
Comp |
AC |
|
Coord arcsec 2000 |
14 44 59.14 +27 04 29.9 |
|
Date first |
1901 |
|
Date last |
2020 |
|
Obs |
7 |
|
Pa first |
257 |
|
Pa last |
254.4 |
|
P.A. Now (θ) |
254.4° |
|
Sep first |
178.2 |
|
Sep last |
174.07 |
|
Sep. Now (ρ) |
174.07" |
|
Mag pri |
2.58 |
|
Mag sec |
12.58 |
|
delta mag (ΔM) |
10 |
|
Spectral class |
K0II-III (yellow-orange) |
|
Pri motion ra |
-051 |
|
Sec motion ra |
-006 |
|
Pri motion dec |
+020 |
|
Sec motion dec |
-016 |
|
Notes |
N
(See Notes) |
|
rPM=1.052
This double is not physical.
14450+2704 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Izar |
83500 |
14 44 59 +27 04 30 |
STF 1877 AB |
2020 |
475 |
347 |
2.9 |
2.58 |
4.81 |
2.23 |
|
|
Show |
|
83500 |
14 44 59 +27 04 30 |
STF 1877 AC |
2020 |
7 |
254 |
174.1 |
2.58 |
12.58 |
10.00 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Common name |
Izar |
|
Constellation |
Bootes |
|
SAO |
83500 |
|
HIP |
72105 |
|
Tycho2 |
2019-01251-1 |
|
Gaia DR2 |
1279798789901591168 |
|
HD |
129988 |
|
HR |
5506 |
|
GC |
19856 |
|
ADS |
9372 |
|
BD |
BD+27 2417 |
|
Bayer |
Epsilon Bootis |
|
Bayer name |
Eps Boo |
|
Flamsteed |
36 Bootis |
|
Flamsteed name |
36 Boo |
|
Distance |
62.11 |
|
Distance ly |
202.6 |
|
Bayer greek |
ε Boo |
|
WDS 14450+2704 STF 1877 AC : NOTES
discov_num |
notes |
refcode |
STF1877 |
eps Boo = 36 Boo = Izar. B is a spectroscopic binary. |
|
|
Scardia et al. say the quadrant is unambiguous for their 2004 theta |
Sca2005a |
|
value of 162.9. This may have been a typographical error on their |
|
|
part, as other observers find the secondary to be in the opposite |
|
|
quadrant and a large magnitude difference. |
|
|
AB: H 1 1. |
MEv2010 |
REFERENCES
refcode |
metd |
author |
reference |
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Sca2005a |
S j |
Scardia, M., Prieur, J.-L., Sala, M., Ghigo, M., Koechlin, L., Aristidi, E., |
2005MNRAS.357.1255S |
Sca2005a |
+C |
& Mazzoleni, F. |
|
Sca2005a |
+orb |
MNRAS 357, 1255, 2005 |
|
Sca2005a |
|
(theta corrections from Prieur, private communication) |
|
DISCOVERER
idgroup |
discov |
author |
1 |
STF |
Struve, F.G.W. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
14450+2704 |
STF1877 |
AC |
1999 |
5 |
255 |
176.3 |
2.58 |
12.00 |
K0II-III |
N D |
144459.25+270427.0 |
14450+2704 |
STF1877 |
AC |
2001 |
6 |
255 |
175.5 |
2.58 |
12.00 |
K0II-III |
N D |
144459.25+270427.0 |
14450+2704 |
STF1877 |
AC |
2020 |
7 |
254 |
174.1 |
2.58 |
12.58 |
K0II-III |
N |
144459.14+270429.9 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 14450+2704 STF 1877 AC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 14450+2704 STF 1877 AC : MEASURES
No records found.
WDS 14450+2704 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 14450+2704 : ALADIN DSS IMAGE @ 14h 44m 59.14s +27° 04' 29.9"
WDS 14450+2704 STF 1877 AC : NEIGHBORHOODS
|
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 |
Izar |
14450+2704 |
STF1877 |
AB |
347 |
2.9 |
|
Show |
Izar |
14450+2704 |
STF1877 |
AC |
254 |
174.1 |
|
Show |
|
14457+2638 |
CVR 158 |
|
308 |
69.4 |
29 |
Show |
|
14487+2728 |
CVR 757 |
|
171 |
11.7 |
55 |
Show |
|
14423+2615 |
LDS4490 |
|
317 |
13.9 |
62 |
Show |
|
14416+2747 |
COU 407 |
|
114 |
0.4 |
62 |
Show |
|
14491+2628 |
AG 346 |
|
335 |
9.6 |
66 |
Show |
|
14428+2807 |
CBL 466 |
|
185 |
95.8 |
70 |
Show |
|
14474+2813 |
KPP3285 |
|
271 |
5.6 |
76 |
Show |
|
14393+2648 |
A 571 |
|
109 |
1.8 |
78 |
Show |
|
14514+2750 |
KPP1961 |
|
35 |
15.5 |
98 |
Show |
|
14403+2549 |
COU 406 |
|
17 |
3.0 |
99 |
Show |
|
14401+2548 |
KPP2401 |
|
126 |
20.7 |
101 |
Show |
|
14500+2546 |
KPP1410 |
|
340 |
10.6 |
104 |
Show |
|
14431+2847 |
HJ 5487 |
|
239 |
19.6 |
106 |
Show |
|
14518+2759 |
GRV 894 |
|
40 |
16.7 |
107 |
Show |
|
14500+2837 |
HL 4 |
AB |
209 |
61.0 |
114 |
Show |
|
14500+2837 |
HJ 5489 |
AC |
21 |
110.3 |
114 |
Show |
|
14376+2809 |
COU 405 |
|
106 |
1.5 |
119 |
Show |
|
14454+2911 |
HJ 2745 |
|
128 |
12.5 |
127 |
Show |
|
14444+2454 |
SLW1025 |
|
262 |
10.4 |
131 |
Show |
|
14367+2815 |
UC 2802 |
|
122 |
36.8 |
131 |
Show |
|
14401+2511 |
SLW1015 |
|
281 |
111.2 |
132 |
Show |
|
14550+2652 |
RAO 324 |
|
30 |
2.9 |
135 |
Show |
|
14341+2716 |
SLW1006 |
|
18 |
162.7 |
146 |
Show |
|
14342+2639 |
AZC 87 |
|
272 |
38.0 |
147 |
Show |
|
14485+2445 |
COU 304 |
|
297 |
0.4 |
148 |
Show |
|
14478+2440 |
KPP2507 |
|
222 |
22.5 |
150 |
Show |
|
14460+2934 |
CVR1597 |
|
271 |
4.0 |
150 |
Show |
|
14543+2542 |
CVR 764 |
|
300 |
13.5 |
150 |
Show |
|
14354+2546 |
RAO 317 |
|
272 |
0.4 |
151 |
Show |
|
14552+2557 |
CVR 765 |
|
22 |
14.7 |
153 |
Show |
|
14449+2428 |
POU3172 |
|
176 |
3.9 |
158 |
Show |
|
14333+2725 |
A 688 |
|
16 |
0.8 |
158 |
Show |
|
14418+2432 |
TOK 297 |
AB |
172 |
215.8 |
159 |
Show |
|
14418+2432 |
RAO 64 |
BC |
62 |
17.2 |
162 |
Show |
|
14519+2921 |
WIS 272 |
|
249 |
999.9 |
165 |
Show |
|
14387+2931 |
UC 2809 |
|
324 |
26.4 |
169 |
Show |
|
14325+2645 |
LDS4476 |
|
49 |
2.3 |
169 |
Show |
|
14484+2422 |
STF1884 |
|
55 |
2.3 |
169 |
Show |
|
14323+2641 |
A 570 |
AB |
234 |
0.2 |
171 |
Show |
|
14339+2835 |
GRV 889 |
|
87 |
38.7 |
173 |
Show |
|
14521+2439 |
KPP2020 |
|
57 |
16.1 |
175 |
Show |
|
14516+2936 |
A 1112 |
|
18 |
6.3 |
175 |
Show |
|
14349+2510 |
LDS4481 |
|
205 |
200.8 |
179 |
Show |
|
14536+2450 |
UC 2866 |
AB |
202 |
62.1 |
179 |
Show |
|
14415+2957 |
LDS6298 |
|
103 |
6.0 |
179 |
Show |
|
14477+2406 |
HO 263 |
|
136 |
0.2 |
183 |
Show |
|
14314+2738 |
AZC 86 |
|
149 |
24.1 |
185 |
Show |
|
14489+2404 |
HJ 2747 |
|
47 |
12.9 |
189 |
Show |
|
14331+2526 |
HJ 2730 |
|
303 |
27.2 |
189 |
|
|
WDS 14450+2704 : COMPONENTS
|
A |
B |
B |
pa=348.0°
sep=2.86"
| |
C |
pa=252.6°
sep=156.46"
| pa=251.5°
sep=156.76"
|
14450+2704 A
Common name |
Izar |
|
Other names |
Mirac, Mirak |
|
Coord arcsec 2000 |
144459.14+270429.9 |
|
Mag |
2.58 |
|
Spectral class |
K0II (yellow-orange) |
|
PmRA |
-51.00 |
|
PmDE |
20.0 |
|
SAO |
83500 |
|
HIP |
72105 |
|
Tycho2 |
2019-01251-1 |
|
HD |
129988 |
|
HR |
5506 |
|
GC |
19856 |
|
BD |
BD+27 2417 |
|
Bayer |
Epsilon Bootis |
|
Bayer name |
Eps Boo |
|
Flamsteed |
36 Bootis |
|
Flamsteed name |
36 Boo |
|
Tycho2 |
2019-01251-1 |
|
Pflag |
|
|
RAmdeg |
221.24676327 |
|
DEmdeg |
27.07420780 |
|
PmRA |
-42.2 |
|
PmDE |
13.6 |
|
E RAmdeg |
3 |
|
E DEmdeg |
3 |
|
E pmRA |
2.2 |
|
E pmDE |
2.2 |
|
EpRAm |
1991.61 |
|
EpDEm |
1991.49 |
|
Num |
4 |
|
Q RAmdeg |
0.7 |
|
Q DEmdeg |
1.3 |
|
Q pmRA |
0.6 |
|
Q pmDE |
1.1 |
|
BTmag |
3.937 |
|
E BTmag |
0.014 |
|
VTmag |
2.578 |
|
E VTmag |
0.009 |
|
Prox |
29 |
|
TYC |
T |
|
HIP |
72105 |
|
CCDM |
A |
|
RAdeg |
221.24687333 |
|
DEdeg |
27.07417556 |
|
EpRA 1990 |
1.63 |
|
EpDE 1990 |
1.51 |
|
E RAdeg |
3.2 |
|
E DEdeg |
3.3 |
|
Posflg |
D |
|
Corr |
-0.1 |
|
SAO |
83500 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0038 |
|
DE1950 |
|
|
PmDE1950 |
0.018 |
|
Vmag |
2.7 |
|
SpType |
K0 |
|
Double code |
|
|
Source |
71 |
|
CatNum |
1633 |
|
DM |
BD+27 2417 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
129988 |
|
M HD |
9 |
|
GC |
19856 |
|
RA1950rad |
3.85195161 |
|
DE1950rad |
0.4761969 |
|
PmRA2000 |
-0.0037 |
|
PmDE2000 |
0.021 |
|
Catalog |
H |
|
HIP |
72105 |
|
Proxy |
H |
|
RAhms |
14 44 59.25 |
|
DEdms |
+27 04 27.0 |
|
Vmag |
2.35 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
221.247 |
|
DEdeg |
27.0742 |
|
AstroRef |
A |
|
Plx |
15.55 |
|
CCDM |
14449+2704 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
341 |
|
Rho |
2.867 |
|
HD |
129988 |
|
BD |
BD+27 2417 |
|
CD |
|
|
CP |
|
|
Dm number |
+27 2417 |
|
VIred |
0.95 |
|
SpType |
A0 |
|
R SpType |
|
|
Coord arcsec 2000 |
144459.25+270427.0 |
|
HIP |
72105 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
3.8614864893 |
|
DErad |
0.4725334744 |
|
Plx |
16.1 |
|
PmRA |
-50.95 |
|
PmDE |
21.07 |
|
E RArad |
0.42 |
|
E DErad |
0.37 |
|
E Plx |
0.66 |
|
E pmRA |
0.59 |
|
E pmDE |
0.58 |
|
Hpmag |
2.5167 |
|
E Hpmag |
0.0005 |
|
SHp |
0.004 |
|
VA |
0 |
|
BV |
0.966 |
|
E BV |
0.004 |
|
VI |
0.95 |
|
14450+2704 B
Coord arcsec 2000 |
144459.10+270432.7 |
|
Mag |
4.81 |
|
Spectral class |
III |
|
Calc delta mag |
2.23 |
|
Calc coord |
yes |
|
14450+2704 C
Coord arcsec 2000 |
144447.96+270343.1 |
|
Mag |
12.58 |
|
Spectral class |
III |
|
PmRA |
-6.00 |
|
PmDE |
-16.0 |
|
Calc delta mag |
10 |
|
Calc coord |
yes |
|