SWEEPS-04

{{Short description|Exoplanet}}

{{Infobox planet

| name = SWEEPS-04

| image = Exoplanet Comparison SWEEPS-04 b.png

| caption = Size comparison of SWEEPS-04 with Jupiter.

| discoverer = Sahu et al.{{cite journal | last1=Sahu | first1=Kailash C. | title=Transiting extrasolar planetary candidates in the Galactic bulge | journal=Nature | volume=443 | pages=534–540 | date=2006 | doi=10.1038/nature05158 | pmid=17024085 | last2=Casertano | first2=S | last3=Bond | first3=HE | last4=Valenti | first4=J | last5=Smith | first5=TE | last6=Minniti | first6=D | last7=Zoccali | first7=M|author7-link=Manuela Zoccali | last8=Livio | first8=M | last9=Panagia | first9=N | last10=Piskunov | first10=Nikolai | last11=Brown | first11=Thomas M. | last12=Brown | first12=Timothy | last13=Renzini | first13=Alvio | last14=Rich | first14=R. Michael | last15=Clarkson | first15=Will | last16=Lubow | first16=Stephen | issue=7111 | bibcode=2006Natur.443..534S|arxiv = astro-ph/0610098 | s2cid=4403395 | display-authors=8 }} ([https://arxiv.org/abs/astro-ph/0610098 web Preprint])

| discovered = October 4, 2006

| discovery_method = Transit

| apsis = astron

| semimajor = {{convert|0.055|AU|km|abbr=on}}

| period = 4.2 d

| inclination = >87

| star = SWEEPS J175853.92−291120.6

| mean_radius = 0.81±0.1 {{Jupiter radius|link=y}}

| mass = <3.8 {{Jupiter mass|link=y}}

}}

SWEEPS-04 is an extrasolar planet orbiting the star SWEEPS J175853.92−291120.6 in the constellation Sagittarius approximately 27,710 light years away (based on a distance modulus of 14.1) from the Solar System, making it (along with SWEEPS-11) the most distant exoplanet(s) known.{{cite web|url=http://phl.upr.edu/projects/habitable-exoplanets-catalog/top10|title=HEC: Top 10 Exoplanets - Planetary Habitability Laboratory @ UPR Arecibo|author=|date=|website=phl.upr.edu|accessdate=16 July 2018|archive-date=17 December 2013|archive-url=https://web.archive.org/web/20131217224149/http://phl.upr.edu/projects/habitable-exoplanets-catalog/top10|url-status=dead}} This planet was found in 2006 by the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS) program that uses the transit method.

The upper limit on the planet's mass is 3.8 times the mass of Jupiter. The best fit radius is 0.81 times that of Jupiter, but the uncertainty in this value is large, around 12%. It orbits at an average distance of 8,200,000 km (0.055 AU) from the parent star, taking 4.2 days to revolve around it.

fILE:HST SWEEPS-4 2006.jpg|HST SWEEPS-4 2006

File:Radial Velocities of SWEEPS-04 (UVES-VLT).jpg|Radial Velocities of SWEEPS-04 (UVES-VLT)

File:Artist's impression of a transiting Jupiter-mass exoplanet SWEEPS J175853.92-291120.6 b.jpg|Artist's impression of a transiting Jupiter-mass exoplanet SWEEPS J175853.92-291120.6 b