Release 11.12 ("Hergest Ridge")


Selected: Pal 15

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Parameters
Positional Parameters
clusterPal 15
RA16 59 51.0
Declination-00 32 20
Galactic longitude18.88
Galactic latitude24.3
R sun45.1
R gc38.4
X38.9
Y13.3
Z18.6
Photometric Parameters
E (B-V)0.4
V HB20
(m-M)19.51
Vt14
MVt-5.51
S_RR0
HBR1
hbt1
Structural Parameters
[Fe / H]-2.07
v_r68.9
err1.1
v_LSR82.9
c0.6
r_c1.2
r_h1.1
r_t4.99
lg(tc)9.99
lg(th)9.72
mu_V24.87
rho_v-0.25
Color-magnitude diagrams
authorHarris, William E.
titleCCD photometry of the outer-halo cluster Palomar 15
journalAstronomical Journal, vol. 102, Oct. 1991, p. 1348-1357
CM diagram

Description of Pal 15

Palomar 15 was discovered by Zwicky (1959), who claimed it contained about 400 star with 19 < m < 22. Kinman and Rosino (1961) obtained nine deep plates (limiting m around 22), and counted 150 stars within a 4.2' radius, and found no variables. The cluster was ignored until recently, when both the authors and Harris and ban den Bergh (1983) decided to study it in more detail... the cluster apparently has an unusually large core radius, the largest, in fact, of any globular cluster. This alone makes it dinamically interesting. Its large tidal radius, on the other hand, suggests it has never strayed close to the Galactic center, where tidal forces would easily dismember it.

Source: Seitzer and Carney (1990) | Notify inaccuracies

Image

Image of the cluster from the Digital Sky Survey

Other Resources
for Pal 15
ADS "Object Search"
SEDS data
Web Links for this cluster
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Users comments for this cluster
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Selected biblio
Paper n. 1
Harris, William E.
CCD photometry of the outer-halo cluster Palomar 15
1991, Astronomical Journal, vol. 102, Oct. 1991, p. 1348-1357
(Pal 15 cmd )
Paper n. 2
Seitzer, Patrick; Carney, Bruce W.
The obscure globular cluster Palomar 15
1990, Astronomical Journal, vol. 99, p. 229-239
(Pal 15 )
Paper n. 3
Peterson, Ruth C.; Latham, David W.
The radial velocity and velocity dispersion of the remote globular cluster Palomar 15 - Constraints on the mass of the Galaxy
1989, Astrophysical Journal, vol. 336, p. 178-184
(Pal 15 )
See all items (4 papers) :: Submit a paper
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Query processed at 08:18, 28th March
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