Celestial hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  NGC 6357
NGC 6357 IN NARROW BAND MAPPED AS LRGB, Fernando
NGC 6357 IN NARROW BAND MAPPED AS LRGB
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NGC 6357 IN NARROW BAND MAPPED AS LRGB

NGC 6357 IN NARROW BAND MAPPED AS LRGB, Fernando
NGC 6357 IN NARROW BAND MAPPED AS LRGB
Powered byPixInsight

NGC 6357 IN NARROW BAND MAPPED AS LRGB

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Description

NGC 6357 is an open cluster with nebula located in constellation of Scorpius. It was discovered by John Herschel in 1837.

Also known as Lobster Nebul, the cluster is at Right Ascencion of 17h 24m 43.5S and

Declinação -34° 12' 05"

It is distant fron Earth about 4.5 light years, having apparent dimension of 35 arc-minutes.

NGC 6357 has estimated age of 4.6 bilhões years and has 998 billion stars.

This image is a stack of:

Ha - 12 subs of 1200 seconds each

S2 - 12 subs of 1200 seconds each

O3 - 16 subs of 1200 seconds each

Telescope: Esprit 120mm f/7

Camera: ST-8300M

Mount: NEQ-6

Guide method: OAG

This is the kind of image that it is worthy to see in full resolution

MAPPING

Ha --> RED

O3--> BLUE

S2--> GREEN

SYNTHETIC LUMINANCE -->0.5Ha+0.25S2+0.25O3

Comments

Revisions

  • NGC 6357 IN NARROW BAND MAPPED AS LRGB, Fernando
    Original
  • Final
    NGC 6357 IN NARROW BAND MAPPED AS LRGB, Fernando
    B

B

Description: LESS HARSH WITH MORE NATURAL COLORS

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NGC 6357 IN NARROW BAND MAPPED AS LRGB, Fernando