Iiro's DeepSky Sketches

Menu
Name: NGC 104Other name: 47 Tucanae
RA: 0h 24.1m DEC: -72° 5'
Constellation: TUC
Type: Globular cluster
Magnitude: 4
Size: 30'
Classification: III
Description: !! vB,vL,eRi,vmCM
Notes: X-ray source,* mags 11...,splendid cluster
Observer: Iiro Sairanen
Location: Wicherina, Greenough, Australia
Date: 12/13.12.2009 22:30
Instrument: Newton 110/805 mm
Magnification: 115xFilter: -
Field: 43'Seeing: 2
Background sky: 1NE lim mag: 7.4
Visuality: IHeight: 39°
Weather: +18°C
Description: Very bright and compact core compared to surrounding halo. Hundreds of stars can be seen easily with direct vision. Halo spreads amazingly at lower power and averted vision. It?s also much larger through 20x100 binoculars. The brightest stars lie on the west side.
Updated: 24.8.2010 17:45
Name: NGC 104Other name: 47 Tucanae
RA: 0h 24.1m DEC: -72° 5'
Constellation: TUC
Type: Globular cluster
Magnitude: 4
Size: 30'
Classification: III
Description: !! vB,vL,eRi,vmCM
Notes: X-ray source,* mags 11...,splendid cluster
Observer: Iiro Sairanen
Location: Beresford, Geraldton, Australia
Date: 8/9.12.2009 22:15
Instrument: Newton 110/805 mm
Magnification: 161xFilter: -
Field: 25'Seeing: 2
Background sky: 4NE lim mag: 5.8
Visuality: IHeight: 42°
Weather: +22°C, windy
Description: The first test observation on the Australian soil! This has been made on ?takayard? (backyard of Timo?s apartment) which is quite badly light polluted. I found this bright globular when I was sweeping around Small Magellanic Cloud. There were several other objects too. The core is quite compact and bright, there are dozens of stars on the halo and the whole cluster is strongly granular.
Updated: 24.8.2010 17:32