???? ????? ??????? ?? ????? A

??? ????? ??????? ???-A ?? (A V) ?? (??? ??? A) ?? ??? ?? ???? ????? ??????? ?????? ?????????? ????? ?????? ??? ????? ?????? A ? ??? ?????? V. ??? ?????? ????? ??? ???????????? ???? ????? ???????? ????? ?????????? ????? ^[1]. ^[1]^[2] ????? ???? ?? 1.4 ??? 2.1 ?? ???? ????? ? ????? ????? ????? ?? ??? 7600 ? 11500 ???? ^[3]? ???? ????? ?????? ??? : ????? ?????? ? ?????? ???????? ? ????? ?????? .

*??????? ?????????*
????? ????	???? _?	??? ??? _?	?. _?	? ????? ( ? )
A0V	2.40	1.87	0.7	11 500
A2V	2.19	1.78	1.3	10 530
A5V	1.86	1.69	2.0	8200
A6V	1.80	1.66	2.1	7672
A7V	1.74	1.63	2.3	7483
A8V	1.66	1.60	2.4	7305
A9V	1.62	1.55	2.5	7112

??????? [ ??? ]

?????? ?? ??? A ????? ???? (???? ??? ???? ???????? ?? ??????) ?????? ???? ?????? ??? ??????? ?????? ????? ?? ????? ???????? ?? ????? ????. ??? ?????? ?? ?????? ???? ??? ?????? ?? ??? ?????? ??? ????? ???????. ???? ???????? ??? ????? ???? ????? ???? ??? ??? ?????? ??? ????? ?? ?? ??? A ???? ?????? ?? ?????? ??????? ???????? ????? ????? ?????? ??? ?????? ???? ????? ????? ??? ???? ????? ?? ???? ?????? ????? ??????? ??????? ?? ??????? ???? ???? . ??? ????? ?? ?????? ???? ?????? ???? ?? ????? ?????? ??? ??? ????? ???? ???? ???? ???? ???????? ???? ??? ?????? ???????? ????? ?????? ???????? ???? ??? ???????.

?? ???? ??? 2011? ?? ????? 30 ????? ???? ???????? ???? ??? ???? ?? ??? K ???????? ?? ????? ??? ?????? ??????? ??????? ?????

????? ????? ?????? ?? ?????? ????? ?? ?????? ????? ??? ?? ????? 1 ?? 6 ???? ???? ???? ????? ???? ???? ???? ?? ???? ???? ???????? ????? 1 ?? 16 ?????? ????? ?????.

???? ????? [ ??? ]

????? [ ??? ]

^ ^? ^? ^? Stellar Spectral Types , entry at hyperphysics.phy-astr.gsu.edu, accessed on line June 19, 2007. ???? ?????? 26 ????? 2017 ??? ???? ??? ??? ???? .
^ "An Introduction to Modern Astrophysics" by B.W Caroll and D.A Ostlie 1996 edition, chapter 8
^ ^? ^? , entries on Sirius A and Vega , accessed June 19, 2007. A ???? ?????? 21 ?????? 2018 ??? ???? ??? ??? ???? .
^ > Empirical bolometric corrections for the main-sequence , G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp. 193?237, Tables VII and VIII. ???? ?????? 09 ?????? 2017 ??? ???? ??? ??? ???? .

?? ????? ??? ?????? ??: ???? ????? ??????? ?? ????? A

[a1-1] ? ^? ^? Stellar Spectral Types , entry at hyperphysics.phy-astr.gsu.edu, accessed on line June 19, 2007. ???? ?????? 26 ????? 2017 ??? ???? ??? ??? ???? .

[2] "An Introduction to Modern Astrophysics" by B.W Caroll and D.A Ostlie 1996 edition, chapter 8

[simbad-3] ? ^? , entries on Sirius A and Vega , accessed June 19, 2007. A ???? ?????? 21 ?????? 2018 ??? ???? ??? ??? ???? .

[A3-4] > Empirical bolometric corrections for the main-sequence , G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp. 193?237, Tables VII and VIII. ???? ?????? 09 ?????? 2017 ??? ???? ??? ??? ???? .

[1]

[2]

[3]

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??? ????	????? ?????? ????? ???????? II ??? ??? ????? ????? ???? ??? ????? ???? ???? ????? ???? ????? ???? ??? T ????? ?? ?? ?????? ??? ?????? Ae/Be
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