Star • GDR1 5209039106568647040

Cluster
eta Cha
Proposed Clusters
Alternate Names
2MASS J08413030-7853064
USNO Anon 1
J0841.5-7853
[GRS2008] 14
2MASS 08413030-7853064
WISEA J084130.20-785306.1
RECX 14
V* ES Cha
GDR2 5209039110864333312
ECHA J0841.5-7853
ES Cha
[LS 2004] 14
GDR1 5209039106568647040
[MHL2005] 14
SIP Output
Aladin

Fiducial Data

Parameter Value Error Unit Reference
cluster_name eta Cha [char] messina2011
ra 08 41 30.1561 h m s gaiacollaboration2016
dec -78 53 06.0596 d m s gaiacollaboration2016
ra_deg 130.37565049 deg gaiacollaboration2016
dec_deg -78.88501655 deg gaiacollaboration2016
pm_ra -30.245 0.123 mas/yr gaiacollaboration2018
pm_dec 28.235 0.14 mas/yr gaiacollaboration2018
plx 10.1207 0.06 mas gaiacollaboration2018
st_dist 98.8074 0.5858 pc gaiacollaboration2018
spt M5 [char] messina2011
spt_num 65.0 [decimal allowed] messina2011
spt_lit M5e [char] messina2011
H_alpha -12.0 0.1nm lawson2002
LiI_6708 0.9 0.1nm lawson2002
rot_period 1.73 days lawson2002
Av 0.092 0.5 mag YSOPY
Teff 2880.0 77.9 K YSOPY
log_Teff 3.459 0.01 log K YSOPY
L_star 0.024 0.0 Lsun YSOPY
log_L_star -1.617 0.04 log Lsun YSOPY
R_star 0.001 Rsun YSOPY
M_star 0.058 0.02 Msun YSOPY
log_M_star -1.239 0.1 log Msun YSOPY
age_star 4.106 2.85 Myr YSOPY
log_age_star 6.613 0.27 log yr YSOPY
disk_flag True [boolean] bouwman2006
disk_desc Disk [char] bouwman2006
fdisk 0.04 gautier2008
V 17.07 mag lawson2002
Rc 15.55 mag lawson2002
Ic 13.82 mag lawson2002
gaia_g 15.1838 0.001 mag gaiacollaboration2018
gaia_bp 17.2435 0.0087 mag gaiacollaboration2018
gaia_rp 13.8292 0.003 mag gaiacollaboration2018
tm_J 11.809 0.027 mag cutri2003
tm_H 11.241 0.027 mag cutri2003
tm_K 10.983 0.023 mag cutri2003
tm_flags "AAA,0" [char] cutri2003
J 11.9 mag lyo2003
H 11.3 mag lyo2003
K 10.94 mag lyo2003
L 10.63 mag haisch2005
S_3p6 10.53 0.01 mag sicilia-aguilar2009
S_4p5 10.26 0.05 mag sicilia-aguilar2009
S_5p8 10.04 0.01 mag sicilia-aguilar2009
S_8 9.48 0.01 mag sicilia-aguilar2009
S_24_fd 8.63 0.04 mJy gautier2008
S_24 7.07 0.06 mag sicilia-aguilar2009
S_13 9.0 mJy bouwman2006
S_33 11.3 mJy bouwman2006
W_3p4 10.718 0.022 mag wright2010
W_4p6 10.351 0.02 mag wright2010
W_12 8.99 0.024 mag wright2010
W_22 7.367 0.095 mag wright2010
wise_flags "AAAA,dd00" [char] wright2010

Non Fiducial Data

Membership
cluster_name ([char])
Value Error Ref.
unknown gaiacollaboration2016
mem_num ([integer])
Value Error Ref.
0 gaiacollaboration2016
ObsProp
spt ([char])
Value Error Ref.
M4.75 luhman2004
M4 lawson2002
M4.5 skiffBMK
spt_num ([decimal allowed])
Value Error Ref.
64.75 luhman2004
64.0 lawson2002
64.5 skiffBMK
spt_lit ([char])
Value Error Ref.
M4.75 luhman2004
M4 lawson2002
M4.5Ve skiffBMK
Derived Stellar Properties
Teff (K)
Value Error Ref.
2900.0 riviere-marichalar2015
3161.0 luhman2004
3883.58 364.02 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
3.46 riviere-marichalar2015
3.5 luhman2004
L_star (Lsun)
Value Error Ref.
0.02 0.01 riviere-marichalar2015
0.023 luhman2004
log_L_star (log Lsun)
Value Error Ref.
-1.699 0.8495 riviere-marichalar2015
-1.63827 luhman2004
Optical Photometry
gaia_g (mag)
Value Error Ref.
14.947 gaiacollaboration2016
Mid-Infrared Photometry
S_3p6 (mag)
Value Error Ref.
10.53 0.01 megeath2005
S_4p5 (mag)
Value Error Ref.
10.26 0.05 megeath2005
S_5p8 (mag)
Value Error Ref.
10.04 0.01 megeath2005
S_8 (mag)
Value Error Ref.
9.48 0.01 megeath2005
Coordinates
ra (h m s)
Value Error Ref.
08 41 30.156 gaiacollaboration2016
08 41 30.302 cutri2003
08 41 30.207 wright2010
08 41 30.302 riviere-marichalar2015
08 41 30.302 messina2011
08 41 30.302 lopez-santiago2010
08 41 30.302 sicilia-aguilar2009
08 41 30.302 gautier2008
08 41 30.302 bouwman2006
08 41 30.302 haisch2005
08 41 30.302 megeath2005
08 41 30.30 luhman2004
08 41 30.302 lawson2002
08 41 30.302 lyo2003
08 41 30.300 skiffBMK
08 41 30.150 gaiacollaboration2018
dec (d m s)
Value Error Ref.
-78 53 06.06 gaiacollaboration2016
-78 53 06.45 cutri2003
-78 53 06.19 wright2010
-78 53 06.45 riviere-marichalar2015
-78 53 06.45 messina2011
-78 53 06.45 lopez-santiago2010
-78 53 06.45 sicilia-aguilar2009
-78 53 06.45 gautier2008
-78 53 06.45 bouwman2006
-78 53 06.45 haisch2005
-78 53 06.45 megeath2005
-78 53 06.5 luhman2004
-78 53 06.45 lawson2002
-78 53 06.45 lyo2003
-78 53 06.40 skiffBMK
-78 53 06.04 gaiacollaboration2018
ra_deg (deg)
Value Error Ref.
130.37565049 0.955 gaiacollaboration2016
130.376258 60.0 cutri2003
130.3758639 44.332 wright2010
130.37625833 riviere-marichalar2015
130.37625833 messina2011
130.37625833 lopez-santiago2010
130.37625833 sicilia-aguilar2009
130.37625833 gautier2008
130.37625833 bouwman2006
130.37625833 haisch2005
130.37625833 megeath2005
130.37625 luhman2004
130.37625833 lawson2002
130.37625833 lyo2003
130.37625 skiffBMK
130.37562508 0.0648 gaiacollaboration2018
dec_deg (deg)
Value Error Ref.
-78.88501655 0.74 gaiacollaboration2016
-78.885124 80.0 cutri2003
-78.8850528 43.0715 wright2010
-78.885125 riviere-marichalar2015
-78.885125 messina2011
-78.885125 lopez-santiago2010
-78.885125 sicilia-aguilar2009
-78.885125 gautier2008
-78.885125 bouwman2006
-78.885125 haisch2005
-78.885125 megeath2005
-78.88513889 luhman2004
-78.885125 lawson2002
-78.885125 lyo2003
-78.88511 skiffBMK
-78.8850121 0.0686 gaiacollaboration2018

All young stellar objects welcome!

Site Credits  •  Contact Us

California Institue of Technology