An H II region or HII region is a region of interstellar atomic hydrogen that is ionized. It is typically in a molecular cloud of partially ionized gas...
35 KB (4,404 words) - 20:48, 16 July 2024
The H-II (H2) rocket was a Japanese satellite launch system, which flew seven times between 1994 and 1999, with five successes. It was developed by NASDA...
11 KB (786 words) - 17:23, 24 May 2024
The H-II Transfer Vehicle (HTV), also called Kounotori (こうのとり, Kōnotori, "Oriental stork" or "white stork"), is an expendable, automated cargo spacecraft...
28 KB (2,454 words) - 03:04, 2 April 2024
Ed White (astronaut) (redirect from Edward H. White, II)
Career Academy in Chicago Edward H. White Middle School in White's hometown of San Antonio, Texas Edward H. White II Elementary School in El Lago, Texas...
59 KB (5,817 words) - 05:11, 28 July 2024
The Horten H.XVIII (18) was a proposed German World War II intercontinental bomber, designed by the Horten brothers. The unbuilt H.XVIII represented,...
9 KB (792 words) - 00:16, 26 March 2024
The Horten H.II Habicht (Hawk) was a German flying wing glider built in Germany in 1935. Four, including one flown mostly as a motorglider, were built...
11 KB (1,314 words) - 08:58, 9 January 2024
launches made by JAXA using H-II, H-IIA, H-IIB and H3 rockets. 1 2 3 4 5 6 1994 1998 2002 2006 2010 2014 2018 2022 H-II H-IIA H-IIB H3 1 2 3 4 5 6 1994...
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the first H-IIA launched after this privatization. The H-IIA is a derivative of the earlier H-II rocket, substantially redesigned to improve reliability...
25 KB (927 words) - 03:55, 24 July 2024
surrounding the massive stars is known as an H II region while the shells of neutral hydrogen surrounding the H II region are known as photodissociation region...
21 KB (2,865 words) - 17:14, 31 August 2024
Balmer series (redirect from H-beta)
of emission or ionisation nebula, like the Orion Nebula, which are often H II regions found in star forming regions. In true-colour pictures, these nebula...
12 KB (1,326 words) - 11:24, 28 August 2024
spectra. They are usually observed in the spiral arms of galaxies and in H II regions, but not in elliptical galaxies; those are generally composed of...
49 KB (4,792 words) - 00:40, 25 August 2024
(H is the chemical symbol for hydrogen, and "I" is the Roman numeral. It is customary in astronomy to use the Roman numeral I for neutral atoms, II for...
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( h i i {\displaystyle h_{ii}} ): D i = e i 2 p s 2 [ h i i ( 1 − h i i ) 2 ] . {\displaystyle D_{i}={\frac {e_{i}^{2}}{ps^{2}}}\left[{\frac {h_{ii...
22 KB (3,639 words) - 07:37, 12 August 2024
Josephine. USS Josephine H. II (SP-245) was a United States Navy patrol vessel in commission from 1917 to 1918. Josephine H. II was built as a civilian...
3 KB (208 words) - 17:39, 26 April 2023
prefix h, meaning 100 times. H with diacritics: Ĥ ĥ Ȟ ȟ Ħ ħ Ḩ ḩ Ⱨ ⱨ ẖ ẖ Ḥ ḥ Ḣ ḣ Ḧ ḧ Ḫ ḫ ꞕ Ꜧ ꜧ IPA-specific symbols related to H: ʜ ɦ ʰ ʱ ɥ ᶣ ɧ Superscript...
26 KB (2,558 words) - 06:33, 27 August 2024
Jack Heinz (redirect from H J Heinz II)
Henry John Heinz II (July 10, 1908 – February 23, 1987) was an American business executive and CEO of the H. J. Heinz Company based in Pittsburgh, Pennsylvania...
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Stellar population (redirect from Population II)
A.E.; et al. (2003). "Massive star formation in a gravitationally lensed H II galaxy at z = 3.357". Astrophysical Journal. 596 (1): 797–809. arXiv:astro-ph/0307162...
35 KB (3,549 words) - 18:57, 26 August 2024
C.H.U.D. II: Bud the C.H.U.D. is a 1989 zombie comedy film, directed by David Irving, written by M. Kane Jeeves and stars Brian Robbins, Tricia Leigh Fisher...
7 KB (676 words) - 21:34, 23 July 2024
Tarantula Nebula (category H II regions)
The Tarantula Nebula (also known as 30 Doradus) is a large H II region in the Large Magellanic Cloud (LMC), forming its south-east corner (from Earth's...
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Andromeda Galaxy. M101 has a high population of H II regions, many of which are very large and bright. H II regions usually accompany the enormous clouds...
19 KB (1,838 words) - 14:46, 5 July 2024
PC, KC, FRS (12 September 1852 – 15 February 1928), generally known as H. H. Asquith, was a British politician and statesman who was Prime Minister of...
243 KB (31,233 words) - 08:18, 25 August 2024
It was used to launch the H-II Transfer Vehicle (HTV, or Kōnotori) cargo spacecraft for the International Space Station. The H-IIB was a liquid-fueled rocket...
17 KB (1,178 words) - 13:54, 24 May 2024
that [ H 2 ] i i = [ H ] i i {\displaystyle \left[\mathbf {H} ^{2}\right]_{ii}=\left[\mathbf {H} \right]_{ii}} , we have h i i = h i i 2 + ∑ j ≠ i h i j...
13 KB (2,121 words) - 05:57, 21 August 2024
cataloged H II regions of the Milky Way Galaxy using the images from the Palomar Sky Survey. From this work Sharpless published his catalog of H II regions...
4 KB (375 words) - 20:21, 30 July 2024
Orrin H. Ingram II (born July 5, 1960) is an American heir, businessman, philanthropist and polo player. He is the chief executive officer (CEO) of Ingram...
10 KB (741 words) - 10:44, 23 July 2023
Herbig–Haro object (redirect from H-H Objects)
9,000–12,000 K, similar to those found in other ionized nebulae such as H II regions and planetary nebulae. Densities, on the other hand, are higher than...
37 KB (4,071 words) - 22:39, 3 August 2024
Hubert Humphrey (redirect from Hubert H. Humphrey II)
building, the Hubert H. Humphrey Center (formerly Hubert H. Humphrey Institute of Public Affairs; changed in January 2011) The Hubert H. Humphrey Building...
169 KB (17,334 words) - 04:37, 28 August 2024
The Horten H.IV was a German tailless flying wing glider in which the pilot was to lie in a prone position to reduce the frontal area, and hence drag...
4 KB (374 words) - 08:16, 9 August 2024
The Horten H.VII was a flying wing fighter-trainer aircraft designed by the Horten brothers in Nazi Germany during World War II. The H.VII was originally...
6 KB (436 words) - 13:31, 4 September 2023