Open Cluster of the South : NGC 3114 (Los_Calvos)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: NGC 3114

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Open Cluster of the South : NGC 3114

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Open Cluster of the South : NGC 3114

NGC 3114 has first been subject of studies in 1963, when Jankowitz and McCosh obtained photographic UBV photometry for 171 of its stars and photoelectric UBV photometry of 52 stars.

They estimated the cluster to be 910 parsecs from the Sun, its mean visual extinction and its age to range from 6x10^7 and 2x10^8 years.[2]

In 1988, Schneider and Weiss obtained photometry data for 122 stars, revising the cluster reddening to be =0.03.[2]

Three years later, Sagar and Sharpless made the largest data recording of the cluster to date, obtaining BV CCD photometry of around 350 stars from seven 3.6'×5.4' regions. Because these regions were rather far from the cluster centre, a substantial contamination was expected. Nevertheless, by assuming the cluster reddening value obtained by Schneider and Weiss, they found the cluster to be 940+-60 pc, which agreed with the measurements taken 28 years previously by Jankowitz and McCosh. They also found the age of the cluster to be 1 à 2x10^8 years.[2]

Finally, in 1989 Claria' et al. estimated the cluster chemical abundance, finding that NGC 3114 has basically the same metal richness as the Sun, for which -0.04 +- 0.04 (Fe - Iron, H - Hydrogen).

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	4531491
PixInsight job	DYSAOQGKLFECMYP0J1XDZ56HBL6EPTHF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	10h02m34s.817
RA (top/left)	09h59m07s.446
RA (top/right)	10h05m52s.712
RA (bottom/right)	10h05m57s.770
RA (bottom/left)	09h59m21s.780

Dec (center)	-60°07′21″.68
Dec (top/left)	-60°31′32″.80
Dec (top/right)	-60°32′41″.53
Dec (bottom/right)	-59°42′50″.81
Dec (bottom/left)	-59°41′42″.89

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Open Cluster of the South : NGC 3114

Open Cluster of the South : NGC 3114

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Open Cluster of the South : NGC 3114

Open Cluster of the South : NGC 3114

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