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| mp_category = [[Near-Earth object|NEO]]{{·}}[[Potentially hazardous asteroid|PHA]]{{·}}[[Apollo astero ...Spacewatch II]] at an [[apparent magnitude]] of 20 using a {{convert|1.8|m|in|adj=on|sp=us}} [[reflecting telescope]].<ref name="MPEC2003-E34"/> It has a ...

...body's path. It is usually given in days or years. The term is mostly used in the discovery and tracking of [[asteroids]] and [[comets]]. Arc length has ...} was thought to be a [[Mars-crossing asteroid]] that could be a threat to Earth, but was later found to be another main-belt asteroid. ...

{{Short description|Mira-type long period variable star in the constellation Corona Borealis}} | caption = V Coronae Borealis in optical light ...

{{Short description|Emission nebula in the constellation Cygnus}} | accessdate=2013-01-13}}</ref> ...

...nties-compact.PNG|thumb|upright=1.25| The orbits of kilometre class [[Near-Earth asteroid|NEAs]] are generally well known, though a few have been [[Lost min ...be used as a predictor for the uncertainty in the future motion of [[near-Earth object]]s.<ref name="MPC-Uncertainty"/> ...

{{Short description|Scale for how similar a planet is to earth}} ...Earth Similarity Index values – [[Mercury (planet)|Mercury]], [[Venus]], [[Earth]] and [[Mars]]. Sizes to scale.]] ...

| [[Near-Earth object|NEO]] | epoch = 3 July 2013 ([[Julian day|JD]]&nbsp;2456476.5) ...

{{Short description|Small temporary satellite of Earth that impacted in 2015}} | 18 February 2013 ...

{{short description|Star in the constellation Cygnus}} ...|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|journal=Astronomy Letters|volume=32|issue=11|pages=759–771| ...

...[[supermassive black hole]], then such supermassive black holes must exist in our local universe as "dead" quasars. ...of several of the closest [[supermassive black hole]]s including the ones in the [[Milky Way]], [[Andromeda Galaxy|M31]], [[Messier 32|M32]], [[Messier ...

...e signal to directly determine the mechanical properties of the reflecting objects and thereby find targets whether they are moving or not. ...long with the next received pulse. The result was that the signal from any objects that did not move mixed with the stored signal and became muted out. Only s ...

{{Short description|Triplet of galaxies in the constellation Virgo}} ...r Galaxies]], compiled by [[Halton Arp]] in 1966. Galaxies 269 through 274 in his catalogue are galaxies that appear to have connected [[Spiral arm|arms] ...

{{Short description|Super-Earth orbiting Kepler-1229}} ...et Kepler-1229b, with its star ''(center)''. The [[Milky Way]] can be seen in the background. ...

...her [[overburden pressure|confining pressure]]s suppress brittle fracture. In addition, when a material is behaving ductilely, it exhibits a linear [[Str ...teady state sliding at failure, compared to the sharp stress drop observed in experiments during [[Brittleness|brittle failure]].<ref name="Fossen" /> ...

{{Short description|Main sequence star in the constellation Lyra}} ...9T|arxiv=1501.01101|title=Validation of 12 Small Kepler Transiting Planets in the Habitable Zone|journal=The Astrophysical Journal|volume=800|issue=2|pag ...

...as first observed at [[Mauna Kea Observatory]] on 18 July 1999. Discovered in 2005, its [[minor-planet moon]] is just 3 kilometers smaller than its prima ...o in the "cold" population of cubewanos. As a result, it is likely reddish in color.<ref name="KBOColor" /><ref name="KBOColor2" /> ...

| [[Near-Earth object|NEO]] ...the asteroid will be more than {{Convert|3|AU|e6km|abbr=unit|lk=on}} from Earth.<ref name="Horizons2022"/> ...

{{Short description|Binary star system in the constellation Orion}} ...37....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogu ...

{{Short description|Binary star in the constellation Auriga}} | caption = LY Aurigae is the bright star, with the red arrow pointing at it, in the southeast corner of this picture of [[Messier 38]] ...

...spectroscopy will give a true value of the planet's mass.<br />''Right'': In this case none of the star's movement is along the viewer's line-of-sight a ...y]], '''minimum mass''' is the lower-bound calculated [[mass]] of observed objects such as [[planet]]s, [[star]]s, [[binary system]]s,<ref name="binary"/> [[n ...