Lambda Serpentis: Difference between revisions

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| age_gyr = {{val|5.4|0.7}}
| age_gyr = {{val|5.4|0.7}}
| rotational_velocity = 3<ref name="csrv" />
| rotational_velocity = 3<ref name="csrv" />
| rotation = {{val|24.3|3.7|4.9|ul=day}}
| rotation = {{val|24.3|3.7|4.9}} days
}}
}}
{{Starbox catalog
{{Starbox catalog
| names = {{odlist | B=λ Ser | F=27 Serpentis | BD=+07°3023 | HD=141004 | HIP=77257 | HR=5868 | NSV=7246 | SAO=121186 | 2MASS=J15462661+0721109 }}<ref name="SIMBAD" />
| names = {{odlist | B=λ Ser | F=27 Serpentis | BD=+07°3023 | GJ=598 | HD=141004 | HIP=77257 | HR=5868 | NSV=7246 | SAO=121186 | 2MASS=J15462661+0721109 }}<ref name="SIMBAD" />
}}
}}
{{Starbox reference
{{Starbox reference
| Simbad=lam+Ser
| Simbad=lam+Ser
| NSTED=HD-141004
}}
}}
{{Starbox end}}
{{Starbox end}}
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==Planetary system==
==Planetary system==
In 2020, a candidate planet was detected orbiting Lambda Serpentis (HD 141004). With a [[minimum mass]] of 0.043 {{Jupiter mass|link=y}} (13.6 {{Earth mass|sym=y|link=y}}) and an orbital period of 15 days, this would most likely be a [[hot Neptune]].<ref name="Hirsch2020" /> The discovery of planet was confirmed in 2021.<ref name="Rosenthal2021" />
In 2020, a candidate planet was detected orbiting Lambda Serpentis (HD 141004). With a [[minimum mass]] of 0.043 {{Jupiter mass|link=y}} (13.6 {{Earth mass|sym=y|link=y}}) and an orbital period of 15 days, this would most likely be a [[hot Neptune]].<ref name="Hirsch2020" /> The planet was confirmed in 2021.<ref name="Rosenthal2021" />


{{OrbitboxPlanet begin
{{OrbitboxPlanet begin
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{{OrbitboxPlanet
{{OrbitboxPlanet
| exoplanet = b
| exoplanet = b
| mass = ≥ 0.0428{{±|0.0047|0.0045}}
| mass = ≥0.0428{{±|0.0047|0.0045}}
| semimajor = 0.1238{{±|0.002}}
| semimajor = 0.1238{{±|0.002}}
| period = 15.5083{{±|0.0016|0.0018}}
| period = 15.5083{{±|0.0016|0.0018}}
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{{reflist|refs=
{{reflist|refs=


<ref name="Holmberg2009">{{citation | display-authors=1 | last1=Holmberg | first1=J. | last2=Nordström | first2=B. | last3=Andersen | first3=J. | title=The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics | volume=501 | issue=3 |date=July 2009 | pages=941–947 | journal=Astronomy and Astrophysics | doi=10.1051/0004-6361/200811191 | bibcode=2009A&A...501..941H | arxiv=0811.3982 | s2cid=118577511 | postscript=.}}</ref>
<ref name="Holmberg2009">{{cite journal | display-authors=1 | last1=Holmberg | first1=J. | last2=Nordström | first2=B. | last3=Andersen | first3=J. | title=The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics | volume=501 | issue=3 |date=July 2009 | pages=941–947 | journal=Astronomy and Astrophysics | doi=10.1051/0004-6361/200811191 | bibcode=2009A&A...501..941H | arxiv=0811.3982 | s2cid=118577511 }}</ref>


<ref name="SIMBAD">{{cite web | title=lam Ser -- Spectroscopic binary | work=SIMBAD | publisher=[[Centre de Données astronomiques de Strasbourg]] | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Lambda+Serpentis | access-date=2010-12-15}}</ref>
<ref name="SIMBAD">{{cite web | title=lam Ser -- Spectroscopic binary | work=SIMBAD | publisher=[[Centre de Données astronomiques de Strasbourg]] | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Lambda+Serpentis | access-date=2010-12-15}}</ref>
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<ref name="apj317_1_343">{{cite journal | last=Morbey | first=C. L. |author2=Griffith, R. F. | date=1987 | title=On the reality of certain spectroscopic orbits | journal=Astrophysical Journal | volume=317 | issue=1 | pages=343–352 | doi=10.1086/165281 | bibcode=1987ApJ...317..343M}}</ref>
<ref name="apj317_1_343">{{cite journal | last=Morbey | first=C. L. |author2=Griffith, R. F. | date=1987 | title=On the reality of certain spectroscopic orbits | journal=Astrophysical Journal | volume=317 | issue=1 | pages=343–352 | doi=10.1086/165281 | bibcode=1987ApJ...317..343M}}</ref>


<ref name="aaa449_3_1233">{{citation | last1=Dybczyński | first1=P. A. | title=Simulating observable comets. III. Real stellar perturbers of the Oort cloud and their output | journal=Astronomy and Astrophysics | volume=449 | issue=3 | pages=1233–1242 |date=April 2006 | doi=10.1051/0004-6361:20054284 | bibcode=2006A&A...449.1233D | doi-access=free}}</ref>
<ref name="aaa449_3_1233">{{cite journal | last1=Dybczyński | first1=P. A. | title=Simulating observable comets. III. Real stellar perturbers of the Oort cloud and their output | journal=Astronomy and Astrophysics | volume=449 | issue=3 | pages=1233–1242 |date=April 2006 | doi=10.1051/0004-6361:20054284 | bibcode=2006A&A...449.1233D | doi-access=free}}</ref>


<ref name="Hirsch2020">{{citation |title=Understanding the Impacts of Stellar Companions on Planet Formation and Evolution: A Survey of Stellar and Planetary Companions within 25 pc | display-authors=1 | last1=Hirsch | first1=Lea A. | last2=Rosenthal | first2=Lee | last3=Fulton | first3=Benjamin J. | last4=Howard | first4=Andrew W. | last5=Ciardi | first5=David R. | last6=Marcy | first6=Geoffrey W. | last7=Nielsen | first7=Eric L. | last8=Petigura | first8=Erik A. | last9=de Rosa | first9=Robert J. | last10=Isaacson | first10=Howard | last11=Weiss | first11=Lauren M. | last12=Sinukoff | first12=Evan | last13=Macintosh | first13=Bruce | journal=[[The Astronomical Journal]] | year=2021 | volume=161 | issue=3 | page=134 | postscript=. | doi=10.3847/1538-3881/abd639 | arxiv=2012.09190 | bibcode=2021AJ....161..134H | s2cid=229297873 | doi-access=free}}</ref>
<ref name="Hirsch2020">{{cite journal|title=Understanding the Impacts of Stellar Companions on Planet Formation and Evolution: A Survey of Stellar and Planetary Companions within 25 pc | display-authors=1 | last1=Hirsch | first1=Lea A. | last2=Rosenthal | first2=Lee | last3=Fulton | first3=Benjamin J. | last4=Howard | first4=Andrew W. | last5=Ciardi | first5=David R. | last6=Marcy | first6=Geoffrey W. | last7=Nielsen | first7=Eric L. | last8=Petigura | first8=Erik A. | last9=de Rosa | first9=Robert J. | last10=Isaacson | first10=Howard | last11=Weiss | first11=Lauren M. | last12=Sinukoff | first12=Evan | last13=Macintosh | first13=Bruce | journal=[[The Astronomical Journal]] | year=2021 | volume=161 | issue=3 | page=134 | doi=10.3847/1538-3881/abd639 | arxiv=2012.09190 | bibcode=2021AJ....161..134H | s2cid=229297873 | doi-access=free}}</ref>


<ref name="Rosenthal2021">{{citation|arxiv=2105.11583|year=2021|title=The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades|last1=Rosenthal|first1=Lee J.|last2=Fulton|first2=Benjamin J.|last3=Hirsch|first3=Lea A.|last4=Isaacson|first4=Howard T.|last5=Howard|first5=Andrew W.|last6=Dedrick|first6=Cayla M.|last7=Sherstyuk|first7=Ilya A.|last8=Blunt|first8=Sarah C.|last9=Petigura|first9=Erik A.|last10=Knutson|first10=Heather A.|last11=Behmard|first11=Aida|last12=Chontos|first12=Ashley|last13=Crepp|first13=Justin R.|last14=Crossfield|first14=Ian J. M.|last15=Dalba|first15=Paul A.|last16=Fischer|first16=Debra A.|last17=Henry|first17=Gregory W.|last18=Kane|first18=Stephen R.|last19=Kosiarek|first19=Molly|last20=Marcy|first20=Geoffrey W.|last21=Rubenzahl|first21=Ryan A.|last22=Weiss|first22=Lauren M.|last23=Wright|first23=Jason T.|journal=The Astrophysical Journal Supplement Series|volume=255|issue=1 |page=8|doi=10.3847/1538-4365/abe23c|bibcode=2021ApJS..255....8R |s2cid=235186973 |doi-access=free}}</ref>
<ref name="Rosenthal2021">{{cite journal |arxiv=2105.11583|year=2021|title=The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades|last1=Rosenthal|first1=Lee J.|last2=Fulton|first2=Benjamin J.|last3=Hirsch|first3=Lea A.|last4=Isaacson|first4=Howard T.|last5=Howard|first5=Andrew W.|last6=Dedrick|first6=Cayla M.|last7=Sherstyuk|first7=Ilya A.|last8=Blunt|first8=Sarah C.|last9=Petigura|first9=Erik A.|last10=Knutson|first10=Heather A.|last11=Behmard|first11=Aida|last12=Chontos|first12=Ashley|last13=Crepp|first13=Justin R.|last14=Crossfield|first14=Ian J. M.|last15=Dalba|first15=Paul A.|last16=Fischer|first16=Debra A.|last17=Henry|first17=Gregory W.|last18=Kane|first18=Stephen R.|last19=Kosiarek|first19=Molly|last20=Marcy|first20=Geoffrey W.|last21=Rubenzahl|first21=Ryan A.|last22=Weiss|first22=Lauren M.|last23=Wright|first23=Jason T.|journal=The Astrophysical Journal Supplement Series|volume=255|issue=1 |page=8|doi=10.3847/1538-4365/abe23c|bibcode=2021ApJS..255....8R |s2cid=235186973 |doi-access=free}}</ref>


<ref name=dr3>{{cite Gaia DR3|4430238051199001216}}</ref>
<ref name=dr3>{{cite Gaia DR3|4430238051199001216}}</ref>
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[[Category:2MASS objects|J15462661+0721109]]
[[Category:2MASS objects|J15462661+0721109]]
[[Category:Bayer objects|Serpentis, Lambda]]
[[Category:Bayer objects|Serpentis, Lambda]]
[[Category:Durchmusterung objects|BD+7 3023]]
[[Category:Durchmusterung objects|BD+07 3023]]
[[Category:Flamsteed objects|Serpentis, 27]]
[[Category:Flamsteed objects|Serpentis, 27]]
[[Category:Henry Draper Catalogue objects|141004]]
[[Category:Henry Draper Catalogue objects|141004]]
[[Category:Hipparcos objects|077257]]
[[Category:Hipparcos objects|077257]]
[[Category:Bright Star Catalogue objects|5868]]
[[Category:Bright Star Catalogue objects|5868]]
[[Category:Gliese and GJ objects|0598]]

Latest revision as of 20:55, 22 June 2025

Template:Short description

Lambda Serpentis
Template:Location mark
Location of λ Serpentis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.43[2]
Characteristics
Spectral type G0 V[3]
U−B Template:Engvar +0.11[2]
B−V Template:Engvar +0.60[2]
Variable type Suspected
Astrometry
Radial velocity (Rv)−66.4[4] km/s
Proper motion (μ) RA: Template:Val mas/yr[1]
Dec.: Template:Val mas/yr[1]
Parallax (Ï€)83.92±0.15 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)4.01[5]
Details[6]
MassTemplate:Val Template:Solar mass
RadiusTemplate:Val Template:Solar radius
LuminosityTemplate:Val Template:Solar luminosity
Surface gravity (log g)4.09[7] cgs
TemperatureTemplate:Val K
Metallicity [Fe/H]−0.03[7] dex
RotationTemplate:Val days
Rotational velocity (v sin i)3[8] km/s
AgeTemplate:Val Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[3]
Database references
SIMBADdata
Exoplanet Archivedata

Script error: No such module "Check for unknown parameters".

Lambda Serpentis, Latinized from λ Serpentis, is a star in the constellation Serpens, in its head (Serpens Caput). It has an apparent visual magnitude of 4.43,[2] making it visible to the naked eye. Based upon parallax measurements, this star lies at a distance of about Template:Convert from Earth.[1] Lambda Serpentis is moving toward the Solar System with a radial velocity of 66.4 km s−1.[4] In about 166,000 years, this system will make its closest approach of the Sun at a distance of Template:Convert, before moving away thereafter.[9]

This star is 36% larger and 9% more massive than the Sun, although it has a similar stellar classification. It is shining with nearly double the Sun's luminosity and this energy is being radiated from the star's outer atmosphere at an effective temperature of 5,901 K.[6] A periodicity of 1837 days (5.03 years) was suspected by Morbey & Griffith (1987),[10] but it is probably bound to stellar activity. However, McDonald Observatory team has set limits to the presence of one or more exoplanets[10] around Lambda Serpentis with masses between 0.16 and 2 Jupiter masses and average separations spanning between 0.05 and 5.2 Astronomical Units.

Planetary system

In 2020, a candidate planet was detected orbiting Lambda Serpentis (HD 141004). With a minimum mass of 0.043 Template:Jupiter mass (13.6 Template:Earth mass) and an orbital period of 15 days, this would most likely be a hot Neptune.[11] The planet was confirmed in 2021.[12]

Template:OrbitboxPlanet begin Template:OrbitboxPlanet Template:Orbitbox end

References

Template:Reflist

Further reading

  • Script error: No such module "Citation/CS1".

Template:Stars of Serpens Template:2021 in space

  1. ↑ a b c d e Cite error: Invalid <ref> tag; no text was provided for refs named dr3
  2. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named yerkes53
  3. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named SIMBAD
  4. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named gcsrv
  5. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Holmberg2009
  6. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named metcalfe
  7. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named aaa338_161
  8. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named csrv
  9. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named aaa449_3_1233
  10. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named apj317_1_343
  11. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Hirsch2020
  12. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Rosenthal2021
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