James Dunlop

Scottish astronomer, noted for his work in Australia.

- James Dunlop

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Thomas Brisbane

British Army officer, administrator, and astronomer.

Remains of observatory in Parramatta Park, Parramatta, N.S.W.

He took telescopes, books and two astronomical assistants, Carl Ludwig Christian Rümker and James Dunlop to New South Wales with him.

Double star

Pair of stars that appear close to each other as viewed from Earth, especially with the aid of optical telescopes.

Artist's impression of the discs around the young stars HK Tauri A and B.

Other examples include Δ65, the 65th double discovered by James Dunlop, and Σ2451, discovered by F. G. W. Struve.

Centaurus

Bright constellation in the southern sky.

The two bright stars are (left) Alpha Centauri and (right) Beta Centauri. The faint red star in the center of the red circle is Proxima Centauri.

Centaurus in the Firmamentum Sobiescianum of Johannes Hevelius. This image is reversed from what one sees looking at the sky — it is as though one is looking at the "celestial sphere" from the outside.

Its status as a globular cluster was determined by James Dunlop in 1827.

Centaurus A

Galaxy in the constellation of Centaurus.

This view of the jets of Centaurus A was created through observations in radio waves with a wavelength of 20 cm with the VLA. The position of the radio jet and the knots within the jets matches very well with the structures seen in the x-ray jet. This region of the jet is named „Inner Lobe“.

Wide field view of Centaurus A showing its extended halo of stars

The radio galaxy Centaurus A, as seen by ALMA

The heavily obscured inner (barred?) spiral disk at 24 μm as shown by the Spitzer IR telescope

Chandra X-ray view of Cen A in X-rays showing one relativistic jet from the central black hole

$"Hubble's panchromatic vision... reveals the vibrant glow of young, blue star clusters..."<ref>{{cite web|title=Firestorm of Star Birth in Galaxy Centaurus A|url=http://www.nasa.gov/multimedia/imagegallery/image_feature_2192.html|publisher=NASA|access-date=27 September 2012}}</ref>$

Image of the central parts of Centaurus A showing the parallelogram-shaped remains of a smaller galaxy that was absorbed about 200 to 700 million years ago

"False-colour image of Centaurus A, showing radio (red), 24-micrometre infrared (green) and 0.5–5 keV X-ray emission (blue)

It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, in New South Wales, Australia.

Parramatta

Suburb and major commercial centre in Greater Western Sydney, located in the state of New South Wales, Australia.

"Parramatta from May's Hill" - Joseph Lycett (c1824)

The former Female Orphan School was one of the first schools in the area

6 & 8 Parramatta Square, Parramatta's tallest building

St John's Cathedral was completed in 1802

Victorian Gazebo at the Prince Alfred Square

The Old Government House is a major site of significance in Parramatta Park

Various events are held on the Parramatta River

Astronomers who worked at the observatory, discovering thousands of new stars and deep sky objects, include James Dunlop and Carl Rümker.

Carl Ludwig Christian Rümker

German astronomer.

Tomb of Carl Ludwig Christian Rümker in the British Cemetery, Lisbon

James Dunlop was second assistant.

P Eridani

Binary star system in the constellation of Eridanus whose distance from the Sun is approximately 26 light-years based upon parallax.

It was found to be a double star in December 1825 by James Dunlop in Australia at his home at Paramatta, now spelt Parramatta.

NGC 7793

Flocculent spiral galaxy in the southern constellation of Sculptor.

It was discovered in 1826 by Scottish astronomer James Dunlop.

Robert T. A. Innes

Scottish astronomer best known for discovering Proxima Centauri in 1915, and numerous binary stars.

When he started observing them as an amateur in Australia, the choice plums had already been picked by earlier astronomers, notably James Dunlop and John Herschel.

NGC 4945

Barred spiral galaxy in the constellation Centaurus, visible near the star Xi Centauri.

The location of NGC 4945 (labelled in red)

The galaxy was discovered by James Dunlop in 1826 and is thought to be similar to the Milky Way Galaxy, although X-ray observations show that NGC 4945 has an unusual energetic Seyfert 2 nucleus that might house a supermassive black hole.