“2102 Tantalus”的意思、由来-开放百科全书

词条	2102 Tantalus
释义	References External links {{Infobox planet \| minorplanet = yes \| background = #FFC2E0 \| name = Tantalus \| image = \| caption = \| discovery_ref = \| discoverer = C. Kowal \| discovery_site = Palomar Observatory \| discovered = 27 December 1975 \| mpc_name = (2102) Tantalus \| alt_names = 1975 YA \| named_after = Tantalus \| mp_category = PHA \| orbit_ref = \| epoch = 13 January 2016 (JD 2457400.5) \| aphelion = {{Convert\|1.675969247626000\|AU\|Gm\|abbr=on\|lk=on}} \| perihelion = {{Convert\|0.9041343191800040\|AU\|Gm\|abbr=on}} \| semimajor = {{Convert\|1.290051783403\|AU\|Gm\|abbr=on}} \| eccentricity = .299148816495564 \| period = 1.47 yr (535.19 d) \| inclination = 64.00535930263230° \| asc_node = 94.36993941983230° \| mean_anomaly = 85.78643003020903° \| arg_peri = 61.55509931046220° \| satellites = \| dimensions = 2-4 km^[3] \| albedo = \| max_temp_2 = \| spectral_type = Q \| abs_magnitude = 16.0 \| observation_arc = 38.63 yr (14111 days) \| uncertainty = 0 \| mean_motion = {{Deg2DMS\|0.67265652396238\|sup=ms}} / day \| rotation = {{Convert\|2.384\|h\|d\|abbr=on\|lk=on}} \| moid = {{Convert\|0.0430913\|AU\|Gm\|abbr=on}} }}2102 Tantalus (1975 YA) is an Apollo asteroid discovered on December 27, 1975, by C. Kowal at Palomar Observatory. It is a Q-type asteroid. 2102 Tantalus is a potentially hazardous asteroid (PHA) because its minimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. The Earth-MOID is {{convert\|0.0439\|AU\|km mi\|abbr=on\|lk=on}}. Its orbit is well-determined for the next several hundred years. It will pass {{convert\|0.04439\|AU\|km mi\|abbr=on\|lk=on}} from Earth on 2038-Dec-27, which is just slightly closer than the 1975-Dec-26 approach of 0.046 AU. The asteroid is about 2–4 km in diameter.^[3] References 1. ^¹²{{cite web \|title=Absolute Magnitude (H) \|publisher=NASA/JPL \|url=http://neo.jpl.nasa.gov/glossary/h.html \|accessdate=2015-05-10}} ^[1] }} External links {{JPL small body}} {{Minor planets navigator\|2101 Adonis\|number=2102\|2103 Laverna}}{{Small Solar System bodies}}{{DEFAULTSORT:002102}}{{NE-asteroid-stub}} 7 : Apollo asteroids\|Discoveries by Charles T. Kowal\|Minor planets named from Greek mythology\|Named minor planets\|Potentially hazardous asteroids\|Q-type asteroids (SMASS)\|Astronomical objects discovered in 1975
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