Release 11.12 ("Hergest Ridge")


Selected: Pal 1

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Parameters
Positional Parameters
clusterPal 1
name -
RA03 33 20.04
Declination+79 34 51.8
Galactic longitude130.06
Galactic latitude19.03
R sun11.1
R gc17.2
X-6.8
Y8.1
Z3.6
Photometric Parameters
E (B-V)0.15
V HB16.4
(m-M)15.7
Vt13.18
MVt-2.52
(B-V)0.96
S_RR0
HBR-1
hbt7
Structural Parameters
[Fe / H]-0.65
v_r-82.8
err3.3
v_LSR-76.2
c2.57
r_c0.01
r_h0.46
r_t8.96
lg(tc)4.06
lg(th)7.76
mu_V20.93
rho_v3.51
Color-magnitude diagrams
authorBorissova, J.; Spassova, N.
titleThe CCD photometry of the globular cluster Palomar 1
journalAstronomy and Astrophysics Supplement, 1995, v.110, p.1
CM diagram
Description of Pal 1

Discovered by George Abell in 1954.

A team of astronomers lead by Alfred Rosenberg of Padova, Italy has closer investigated globular cluster Palomar 1. First, they confirm its nature as a globular by finding that its properties and location in the outer halo, about 55,000 light-years from the Galaxy's center, contradict the possibility of a very old open cluster.

They find that Palomar 1 is probably younger than most globulars, and could have been created in a different formation process.

Source: Seds.org | Notify inaccuracies

Image

Image of the cluster from the Digital Sky Survey

Other Resources
for Pal 1
Globular Clusters Blog
ADS "Object Search"
C. Clement variables data
SEDS data
Web Links for this cluster
(0 links in the database at the moment)
Users comments for this cluster
(0 comments in the database at the moment)
Selected biblio
Paper n. 1
Niu, Ping; Cui, Wenyuan; Zhang, Bo; Xie, Geying
Astrophysical Origins for the Unusual Chemical Abundance of the Globular Cluster Palomar 1
2015, Publications of the Astronomical Society of the Pacific, Volume 127, issue 947, pp.51-57
(Pal 1 )
Paper n. 2
Sakari, Charli M. et al.
Detailed Chemical Abundances of Four Stars in the Unusual Globular Cluster Palomar 1
2011, The Astrophysical Journal, Volume 740, Issue 2, article id. 106, 22 pp.
(Pal 1 )
Paper n. 3
Borissova, J.; Spassova, N.
The CCD photometry of the globular cluster Palomar 1
1995, Astronomy and Astrophysics Supplement, 1995, v.110, p.1
(Pal 1 cmd )
See all items (3 papers) :: Submit a paper
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