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NGC 6729

Diffuse Nebula Fair (21/100)
NGC 6729 DiffuseNebula CrA Visible Level 4 Large telescope (10"+) - Consider nebula filters
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Properties

Magnitude —
Angular Size 25.0′ × 20.0′
var* (11...) with neb!!

Position & Identifiers

RA 19h 01m 54.0s
Dec -36° 57' 00.0"
Constellation CrA
Catalog NGC 6729

Visibility

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Filter Response Guide

Eyepiece View

43x TFOV: 1.2° Lim. mag: 13.3
N E

NGC 6729 · 25.0′×20.0′ · N up, E left

Surface Brightness & Visibility

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About NGC 6729

Description

NGC 6729 is a reflection and emission nebula in Corona Australis, about 424 light-years away. It is associated with the variable star R Coronae Australis and is part of a small but active star-forming complex that includes the Coronet cluster.

Observing Tips

A small, fan-shaped nebula visible in a 6-inch telescope. It varies in brightness along with R CrA. Located near the globular cluster NGC 6723 and the dark nebula complex. Best from southern locations in summer.

History

Discovered by Johann Friedrich Julius Schmidt in 1861. Like Hubble's Variable Nebula (C46), NGC 6729 changes in brightness and shape as the illuminating star R CrA varies.

Fun Facts

The Corona Australis star-forming region containing NGC 6729 is one of the nearest active star-formation areas to Earth, at only 424 light-years. Several T Tauri protostars are embedded in the associated molecular cloud.