||NGC 362, Bennett 7,
||01h 03 min - 70°
51' Tucana (Tuc)
||NGC 362 is the “other”
brilliant globular cluster in Tucana, located on the north-east border of
the Small Magellanic Cloud. It was discovered by James Dunlop
on August 1, 1826 and cataloged by him as No. 62 of his catalog.
In the late 1980s, NGC 362 was compared to the otherwise
similar globular NGC 288, and it was found that this cluster was about 3
billion years younger. This because of differences in the color-magnitude
diagrams: the so-called Horizontal Branch of NGC 362 is redder, and
the turnoff point of the main sequence (hottest/bluest/most massive main
sequence stars) is bluer (and brighter).
Although both bright (mag 6.6) and large (13 arcmin),
NGC 362 is often overlooked because it’s in the same area of sky as its
brilliant big cousin, 47Tuc (NGC104).
However NGC 362 has a lot of appeal in its own right, as a compact
globular cluster easily visible in small scopes. With large
apertures the globular is more resolved, revealing many stars tight to the
Click here or on the
image to see NGC 362 in higher resolution. The field of view is 37 x 25 arc minutes.
North is up (0°).
||NRGB 60:20:20:20 min @ -20°C
; all exposures unbinned, no filter on luminance
||SBIG STL-11000 with Astronomik
Type 2 filterset - selfguided
||RCOS 14.5" Ritchey-Chrétien
||MaxIm DL/CCD, Sigma Pre Beta 11,
|Location - Date - Time
||San Esteban (Chile) - 20Aug2006 @
||Transparency 8-9/10, Seeing
7/10, Temperature 11 °C