CrA Complex
RA 19h 02m · Dec -36° 59′
30′
Reflection nebula

CrA Complex

Corona Australis Complex · Corona Australis
We don’t yet know how old these photons are.
LLuminance. A broad clear (UV/IR-blocked) channel that carries the fine detail in an LRGB image.iTelescope T8iTelescope Takahashi FSQ EDSiding Spring Observatory, Australia (Q62) · Takahashi FSQ-ED Petzval apo astrograph · Aperture 106mm · Focal length 530mm · f/5 · Camera FLI Microline…View equipment →RRed broadband channel of an RGB set.iTelescope T8iTelescope Takahashi FSQ EDSiding Spring Observatory, Australia (Q62) · Takahashi FSQ-ED Petzval apo astrograph · Aperture 106mm · Focal length 530mm · f/5 · Camera FLI Microline…View equipment →GGreen broadband channel of an RGB set.iTelescope T8iTelescope Takahashi FSQ EDSiding Spring Observatory, Australia (Q62) · Takahashi FSQ-ED Petzval apo astrograph · Aperture 106mm · Focal length 530mm · f/5 · Camera FLI Microline…View equipment →BBlue broadband channel of an RGB set.iTelescope T8iTelescope Takahashi FSQ EDSiding Spring Observatory, Australia (Q62) · Takahashi FSQ-ED Petzval apo astrograph · Aperture 106mm · Focal length 530mm · f/5 · Camera FLI Microline…View equipment →
⧉ 4 versions of this capture — pick one to see its image and log
Date
22/07/2026
Location
Siding Spring Observatory (remote)
Integration
115m (L 8, R 5, G 5, B 5 x 300s)
Software
PythonastropyastroalignSEPscikit-imagephotutilsAstrometry.net
Notes
Everything the measurements justify and nothing they do not. The background fit is constrained so it cannot subtract the nebula itself; the deepest channel is sharpened with star-protected deconvolution; a second tone curve recovers the bright core without clipping the faint outer structure; and noise reduction is kept away from compact sources. Plate-solved against Gaia DR3, so scale and orientation are measured rather than assumed.
Moon
🌓First quarter, 53% lit
Also in this frame
NGC 6729NGC 6726IC 4812NGC 6723

Catalogued objects inside the plate-solved field, nearest the centre first.

TelescopeiTelescope T8
Captured remotely from · Australia
Bortle 2 · truly dark
Siding Spring Observatory · view on OpenStreetMap ↗ · Place data © GeoNames (CC BY)

Frequently asked questions

What kind of object is Corona Australis Complex?
Corona Australis Complex is a reflection nebula.
Which constellation is Corona Australis Complex in?
Corona Australis Complex lies in the constellation Corona Australis.
What equipment was used to photograph Corona Australis Complex?
This image of Corona Australis Complex was captured with iTelescope T8.
How much exposure time went into this image?
This image of Corona Australis Complex represents 115m (L 8, R 5, G 5, B 5 x 300s) of total integration time.

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