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Contains:  Southern Pleiades, IC 2602, The star θCar
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IC2602 Southern Pleiades in Carina, 





    
        

            Paulo Cacella
IC2602 Southern Pleiades in Carina

IC2602 Southern Pleiades in Carina

Technical card

Imaging telescope or lens:William Optics FLT98

Imaging camera:ZWO ASI 1600MM-Cooled ASI1600

Mount:Sky-Watcher AZEQ6-GT

Guiding telescope or lens:Orion 400mm F/4

Filter:Astrodon RGB

Resolution: 4656x3520

Dates:Feb. 2, 2019

Frames: 3x120"

Integration: 0.1 hours

Avg. Moon age: 27.41 days

Avg. Moon phase: 5.01%

Astrometry.net job: 2503329

RA center: 10h 43' 47"

DEC center: -64° 21' 0"

Pixel scale: 1.270 arcsec/pixel

Orientation: 87.258 degrees

Field radius: 1.030

Locations: DogsHeaven Observatory, Brasilia, DF, Brazil

Data source: Backyard

Description

IC 2602
Southernpleiadesdettaglio.jpg
Simulated image of IC 2602
Observation data (J2000 epoch)
Constellation Carina
Right ascension 10h 42m 57.5s[1]
Declination −64° 23′ 39″
Distance 547 ly[2] (167.7 pc)
Apparent magnitude (V) 1.9[3]
Apparent dimensions (V) 50′ × 50′
Physical characteristics
Estimated age 13.7 M.yr−1
Other designations Theta Carinae Cluster, Caldwell 102, Melotte 102, Collinder 229, VDBH 103[2]
See also: Open cluster, List of open clusters
IC 2602, generally known as the Southern Pleiades or Theta Carinae Cluster, is an open cluster in the constellation Carina that was discovered by Abbe Lacaille in 1751 from South Africa. Easily seen with the naked eye, this cluster is one of the closest to us, whose distance is about 167.7 parsecs (547 light-years) away from Earth.

The Southern Pleiades (IC 2602) has a total apparent magnitude of 1.9, which is 70% fainter than the Taurean Pleiades, and contains about seventy-four stars. It is the third-brightest open cluster in the sky, following the Hyades. Like its northern counterpart, the Southern Pleiades spans a sizeable area of sky, approximately 50 arcminutes, so it is best viewed with large binoculars or telescope with a wide-angle eyepiece.

θ Carinae is the brightest star within the open cluster, with the apparent visual magnitude of +2.74. p Carinae (PP Carinae) is another third-magnitude star known to be a member of IC 2602, although it lies well outside the main visible grouping of stars. All the other members the cluster are of the fifth magnitude and fainter, but several are naked-eye objects, including HR 4196 (V518 Car), HR 4204, HR 4205, HR 4219, HR 4220, HR 4222, HD 92536, HD 93738, and V364 Carinae.

IC 2602 is likely about the same age as the open cluster IC 2391,[4] which has a lithium depletion boundary age of 50 million years old,[5] though the accepted age from its HR-Diagram is about 13.7 million years.[6] IC 2602 stars are also all likely a part of the Lower Scorpius-Centaurus Association

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cacella
Paulo Cacella
License: None (All rights reserved)
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IC2602 Southern Pleiades in Carina, 





    
        

            Paulo Cacella