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This .64 day value, coupled with a metallicity of −1.65, provides evidence that M2 follows the Oosterhoff Gap phenomena. This is an observed gap in the grouping of type I and type II clusters in the Milky Way on a metallicity vs average RRab pulsation period plot. [17] M2 is a bit of an anomaly in reference to Oosterhoff type.
Gyulbudaghian's Nebula (gyool-boo-DAH-ghee-an) is a reflection nebula in the northern constellation Cepheus, located about 1.5 degrees west of the much brighter reflection nebula NGC 7023. The light illuminating it comes from the T Tauri star PV Cephei .
The Ring Nebula is located in the lower right of the image Gum Nebula: 809–950 ly (248–291 pc) [16] [17] Emission nebula: Extends about 36° of the sky Bubble Nebula (NGC 6822) 758 ly (232 pc) [18] [19] [20] H II region: The Bubble Nebula is located in the upper left of the image NGC 6188: 600 ly (180 pc) [21] Emission nebula: NGC 592
Messier 7 or M7, also designated NGC 6475 and sometimes known as the Ptolemy Cluster, [4] is an open cluster of stars in the constellation of Scorpius.The cluster is easily detectable with the naked eye, close to the "stinger" of Scorpius.
NGC 6826 (also known as Caldwell 15) is a planetary nebula located in the constellation Cygnus. It is commonly referred to as the "Blinking Planetary", although many other nebulae exhibit such "blinking". When viewed through a small telescope, the brightness of the central star overwhelms the eye when viewed directly, obscuring the surrounding ...
It is longest observable (opposed to the Sun) in the first half of August. [b] [10] M30 is centered 27,100 light-years away from Earth with a roughly 2.5% margin of error, [4] and is about 93 light-years across. [11] The estimated age is roughly 12.9 billion years [8] and it forms a mass of about 160,000 times the mass of the Sun (M ☉). [6]
The set went on to sell for over $8 million at a Sotheby’s auction in early 2024, smashing records for the most expensive sneakers ever sold in history. 2. Michael Jordan’s 1998 NBA Finals ...
Based on the expansion rate, the estimated age of the nebula is 3,080 years. [5] The central star of the planetary nebula is a subdwarf O star with a spectral type of sdO. [7] The best fit model for this star gives an effective temperature of 100 kK, with 5,250 times the luminosity of the Sun [5] and 60.5% of the Sun's mass. [6]