Kapteyn’s Star - Revision history

IanRidpath at 19:54, 18 June 2025

2025-06-18T19:54:13Z

← Older revision		Revision as of 19:54, 18 June 2025
Line 1:		Line 1:
	~~modern~~ name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8) in [[Pictor]]. The star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021).		Modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8) in [[Pictor]]. The star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021).

	==Etymology and History==		==Etymology and History==
	[[File:Eric kapteyn.png\|alt=screenshot of table\|thumb\|Kapteyn's original note of the discovery. ]]		[[File:Eric kapteyn.png\|alt=screenshot of table\|thumb\|Kapteyn's original note of the discovery. ]]
	This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)		This was 2nd-highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)
	[[File:Eric Luyten.jpg\|alt=screenshot(s) of text\|thumb\|Luyten giving the name "Kapteyn" to a star]]		[[File:Eric Luyten.jpg\|alt=screenshot(s) of text\|thumb\|Luyten giving the name "Kapteyn" to a star]]
	The name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”.		The name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”.

Sushoff at 18:52, 25 December 2024

2024-12-25T18:52:46Z

← Older revision		Revision as of 18:52, 25 December 2024
Line 1:		Line 1:
	modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8). The star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021).		modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8) in [[Pictor]]. The star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021).

	==Etymology and History==		==Etymology and History==
Line 33:		Line 33:
	[[Category:European]]		[[Category:European]]
	[[Category:Modern]]		[[Category:Modern]]
			[[Category:Pic]]

Ericmamajek at 13:46, 5 July 2024

2024-07-05T13:46:49Z

← Older revision		Revision as of 13:46, 5 July 2024
Line 29:		Line 29:
	== Reference ==		== Reference ==

	[[Category:~~Constellation‏‎~~]]		[[Category:Star Name‏‎]]
	[[Category:Eurasia]]		[[Category:Eurasia]]
	[[Category:European]]		[[Category:European]]
	[[Category:Modern]]		[[Category:Modern]]

Sushoff at 13:26, 5 July 2024

2024-07-05T13:26:58Z

← Older revision		Revision as of 13:26, 5 July 2024
Line 1:		Line 1:
	modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8).		modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8). The star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021).

	==Etymology and History==		==Etymology and History==
Line 5:		Line 5:
	This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)		This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)
	[[File:Eric Luyten.jpg\|alt=screenshot(s) of text\|thumb\|Luyten giving the name "Kapteyn" to a star]]		[[File:Eric Luyten.jpg\|alt=screenshot(s) of text\|thumb\|Luyten giving the name "Kapteyn" to a star]]
	~~Name~~ appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”. ~~Star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021)~~		The name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”.
	"Kapteyn" in Allen (1963; Astrophysical Quantities), "Kapteyn's Star" in Rhoads (1971), Burnham (1978), Fernandez+(1983), Sinnott & Perryman Millenium Atlas (1997), Cox (2000; Astrophysical Quantities), Kaler (2006).
	NASA ADS shows “Kapteyn’s star” listed in 44 abstracts		* "Kapteyn" in Allen (1963; Astrophysical Quantities),
	Name is already in ~~SIMBAD:~~ http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Kapteyn's+star. Wikipedia		* "Kapteyn's Star" in Rhoads (1971),
			* Burnham (1978),
			* Fernandez+(1983),
			* Sinnott & Perryman Millenium Atlas (1997),
			* Cox (2000; Astrophysical Quantities),
			* Kaler (2006).
			* NASA ADS shows “Kapteyn’s star” listed in 44 abstracts
			* Name is already in [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Kapteyn's+star SIMBAD]. Wikipedia

	==Mythology==		==Mythology==

Ericmamajek at 12:11, 5 July 2024

2024-07-05T12:11:30Z

← Older revision		Revision as of 12:11, 5 July 2024
Line 24:		Line 24:
	[[Category:Constellation‏‎]]		[[Category:Constellation‏‎]]
	[[Category:Eurasia]]		[[Category:Eurasia]]
	[[Category:~~Europe~~]]		[[Category:European]]
			[[Category:Modern]]

Ericmamajek: /* Weblinks */ added note on WGSN

2024-07-05T11:41:40Z

Weblinks: added note on WGSN

← Older revision		Revision as of 11:41, 5 July 2024
Line 14:		Line 14:
	==IAU Star Name==		==IAU Star Name==

			WGSN discussed the name in 2022 but decided (for the time being) not to name stars after people.

	== Weblinks ==		== Weblinks ==

Ericmamajek: text sources added

2024-07-05T11:40:45Z

text sources added

← Older revision		Revision as of 11:40, 5 July 2024
Line 2:		Line 2:

	==Etymology and History==		==Etymology and History==
			[[File:Eric kapteyn.png\|alt=screenshot of table\|thumb\|Kapteyn's original note of the discovery. ]]
	This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)		This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)
			[[File:Eric Luyten.jpg\|alt=screenshot(s) of text\|thumb\|Luyten giving the name "Kapteyn" to a star]]
	Name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”. Star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021)		Name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”. Star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021)
	"Kapteyn" in Allen (1963; Astrophysical Quantities), "Kapteyn's Star" in Rhoads (1971), Burnham (1978), Fernandez+(1983), Sinnott & Perryman Millenium Atlas (1997), Cox (2000; Astrophysical Quantities), Kaler (2006).		"Kapteyn" in Allen (1963; Astrophysical Quantities), "Kapteyn's Star" in Rhoads (1971), Burnham (1978), Fernandez+(1983), Sinnott & Perryman Millenium Atlas (1997), Cox (2000; Astrophysical Quantities), Kaler (2006).

Ericmamajek: Created page with "modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8). ==Etymology and History== This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”) Name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kap..."

2024-07-05T11:36:20Z

Created page with "modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8). ==Etymology and History== This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”) Name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kap..."

New page

modern name for HD 33793 = GJ 191, a high proper motion M1 subdwarf at d=4pc (V=8.8).

==Etymology and History==

This was 2nd highest proper motion star in 1927 according to Luyten and still is! (8.7”/yr). It was pointed out as highest proper motion (at time) by Kapteyn (1897) “Stern mit grösster bislang bekannter Eigenbewegung” (“Star with largest self-motion known to date”)

Name appears to be from Luyten (1927) “Note on the Magnitude and Spectrum of Kapteyn's Star”. Star was unusual – very blue but M1 type, high pm and very high radial velocity (242 km/s). Two recent exoplanet candidates reported (Anglada-Escude+2014) but both have been rebutted (Bortles+2021)
"Kapteyn" in Allen (1963; Astrophysical Quantities), "Kapteyn's Star" in Rhoads (1971), Burnham (1978), Fernandez+(1983), Sinnott & Perryman Millenium Atlas (1997), Cox (2000; Astrophysical Quantities), Kaler (2006).
NASA ADS shows “Kapteyn’s star” listed in 44 abstracts
Name is already in SIMBAD: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Kapteyn's+star. Wikipedia

==Mythology==

==IAU Star Name==

== Weblinks ==

*

== Reference ==

[[Category:Constellation‏‎]]
[[Category:Eurasia]]
[[Category:Europe]]