Galactic objects

Structure in the center of M16 - the Eagle Nebula. Compilation of images taken over 16 years with ALFOSC. H-alpha, O-III, S-II for the nebula, i,R,V for the stars.
Credit: Benjamin Nobre Hauptmann
Date: 2008 - 2024
Available formats:
Tall format (1.6 MB)
Square format (1.0 MB)

M15 globular cluster. Imaged with ALFOSC, 50 minutes B-band, 1 minute each R, G, I bands.
Credit: Benjamin Nobre Hauptmann
Date: 2024
Available formats:
JPG (2.1MB)
Overlaid Chandra data, PNG (500 kB)

ALFOSC image of a hydrogen structure in the center of the heart nebula. Comprised of 20 min each of S-II, H-alpha and O-III exposures.
Credit: Anders Thygesen, Benjamin Nobre Hauptmann
Dates: 10/2010, 10/2023
Available formats:
PNG(5.0MB)

ALFOSC mosaic, 60 min each of S-II, H-alpha and O-III exposures.

Small segment of a much larger nebula. Taken with ALFOSC, 600s H-alpha, 600s O-III, 60s V-band.
Credit: Processed by Benjamin Nobre Hauptmann. Taken by danish IDA astronomers.
Date: September 2017
Available formats:
JPG (1.3MB)

Observed in B (180s), V (120s) and R (120s) with ALFOSC during dawn.
Credit: Walter Nowotny
Date: September 2000
Available formats:
JPG (86kB)

Composed of 90 minutes of S-II, O-III and H-alpha exposures from winter 2023/2024.
Credit: Benjamin Nobre Hauptmann, Maria Alejandra Diaz, Julie Thiim Gadeberg
Date: 10.9.2004
Available formats:
PNG (2.1MB)

Taken with ALFOSC. N-II H-alpha, O-III for the nebula - R,g,B for the stars.
Credit: Benjamin Nobre Hauptmann and Magnus Gålfalk
Date: 2005 - 2024
Available formats:
JPG highres(1.0Mb)

Composition of hours of ALFOSC images taken over many years by many astronomers. Green and Blue channels are H-alpha and O-III respectively. Red is mixed between N-II and S-II. Stars are true RGB.
Credit: Benjamin Nobre Hauptmann (et. al)
Date: 2014-2024
Available formats:
PNG (1.04 MB)

Green and blue filters were used for the OIII emission: two colours were used for a single emission line because of the large dynamic range of the nebula+halo (contrast of 1 million). The objective was to display all components of the nebula, i.e. inner nebula, first halo (in blue), and outer filamentary halo. Red is NII.
Credit: Romano Corradi
Date: 2002
Available formats:
JPG (319kB)

Compilation of over 1 hour of S-II, H-alpha, and O-III exposures, plus 5 minutes of BVR for the stars. Images by various astronomers from 2009 to 2023, primarily from the danish summer-school.
Credit: Benjamin Nobre Hauptmann (et. al)
Date: 2009 - 2023
Available formats:
PNG (3.8MB)

The image is a composite of 200s B and 100s V and R exposures.
Credit: Eric Stempels
Date: 10.9.2004
Available formats:
PNG (601kb)

It was featured on NASA's astronomy picuture of the day the 3. Nov. 2010 which can found here.
Credit: Romano Corradi (IAC), et al.
Date: 2010
Available formats:
JPG (583.4 kB)

Taken in B, V, R and H-alfa (5 min exposure time each)
Credit: Helena Uthas
Date: 2008
Available formats:
JPG (6.8 MB)

ALFOSC with B, V and R filters in very good seeing.
Credit: Jyri Näränen
Date: 21.2.2006
Available formats:
JPG (428kb)
JPG (64kb)

Observed in B (300s), V (300s) and H-alpha (600s) with ALFOSC during dawn.
Credit: Walter Nowotny
Date: September 2000
Available formats:
JPG (1.8MB)

ALFOSC (R 16min., V 5min., and B 5min.)
Credit: Magnus Gålfalk
Date: 2005
Available formats:
JPG highres(5.6MB)
JPG (790kB)

The image is a combination four images taken at NOT with the 1024X1024 StanCam CCD in R. The exposure time for each individual exposure is 10min.
Credit: Kari Nilsson
Date: October 1994
Available formats:
GIF (65kB)

A Globular cluster. ALFOSC (B 10s., R 5., and i 5s.)
Credit: Magnus Gålfalk
Date: 2005
Available formats:
JPG highres(4.4MB)
JPG (1.0MB)

Planetary Nebula, a composite H-alpha (Blue), V (Green) and R (Red) image.
Credit: Colin Aspin
Date:
Available formats:
GIF (232kB)

Imaged with ALFOSC through H-alpha filter. The filamentary structure of the dark cloud is prominent and the main trunk feature in this image appears twisted. In collaboration with Per Carlqvist, the Alfvén Laboratory, a new theory has been developed describing the formation of twisted filaments.
Credit: Gösta Gahm and Helmuth Kristen
Date:
Available formats:
JPG (141kB)
larger field, JPG (119kB)

Image is a composite of B, V, and R exposures.
Credit: Jyri Näränen & Kalle Torstensson
Date: 28.9.2004
Available formats:
JPG highres(218kb)
JPG (106kb)

Colour image (OIII in green, Ha in red and blue) and an animated [OIII] gif of the evolution of the "lighthouse" of the extraordinary Butterfly Nebulae.
Credit: Romano Corradi
Date: June 2006
Available formats:
JPG (16kb)
GIF animation (120kb)

Image is a combination of 300s B,V, and R exposures taken in twilight with ALFOSC. The field of view is ~5' and the seeing was ~1.2 arcsec. A nice extra feature is the asteroid in the lower right corner (the different coloured dashed line).
Credit: Jyri Näränen
Date: 17.9.2004
Available formats:
JPG hihgres(523kb)
JPG (159kb)

A mosaic of 8 images shot through a wildly varying cloud cover and seeing. Also seen is the HH399 Harbig-Harow jet at seeing 0.8 arcsec. ALFOSC with 3nm H-alpha filter.
Credit: Lars Ø. Andersen, Lars Malmgren, Frank R. Larsen
Date: 15.08.2006
Available formats:
JPG (1.2Mb)

A part of the Eta Carinae nebula, NGC3372. Imaging done with ALFOSC.
Credit: Jakob Øllgaard, Nikolaj Pedersen, Ulrik Pedersen
Date: March 2008
Available formats:
JPG (292kb)

A new young cluster discovered at the position of IRAS 04186+5143, previously thought to be a galaxy. Observed with NOTCam in J (18x48s), H (18x48s), and Ks (18x36s) filters in 2009, FOV=4'. The cluster is at a distance of 5.5 kpc from us and located in the outer Galaxy. It has a large fraction of protostars (Class I sources) and molecular gas and is currently actively forming stars. Published in Yun et al. 2015.
Credit: Anlaug Amanda Djupvik (NOT)
Date: 2015-11-20
Available formats:
JPG (403 kb)

A stellar cluster in formation, composite J (blue), H (green) and K (red) mosaic obtained with Arnica. The field is 8 x 6 arc minutes, and the pixel size 0.53 arc seconds.
Credit: Anlaug Amanda Kaas
Date: August 1996
Available formats: JPG (77kB)

ALFOSC (B 1s. & 5s., R 1s. & 5., and i 1s. & 5s.)
Credit: Magnus Gålfalk
Date: 2005
Available formats:
JPG highres(3.1Mb)
JPG (688kb)

ALFOSC with B, V and R filters. The discrepancy in the middle of the image is due to the use of A+B readout mode.
Credit: Jyri Näränen
Date: 21.2.2006
Available formats:
JPG (140kb)
JPG (24kb)

Imaging done with ALFOSC.

Credit: Romano Corradi
Date: September 2007
Available formats:
JPG (560 kB)

Image is a combination of 300s B,V, and R exposures taken in twilight with ALFOSC. The field of view is ~5' and the seeing was ~1.2 arcsec. A nice extra feature is the asteroid in the lower right corner (the different coloured dashed line).
Credit: Jyri Näränen
Date: 17.9.2004
Available formats:
JPG hihgres(523kb)
JPG (159kb)

A planetary nebula located 1600 light years from Earth. During a night with perfect seeing it was possible to capture this beautiful nebula together with the central white dwarf (bluish central star) and several background galaxies! This image has been composed from a H alpha, V, and B filter.