Earth, Planets and Space

Table 2 Sagittarius stars for alignment check and radiometric calibration

From: Initial products of Akatsuki 1-μm camera

Star	Spectral type	m_v (mag)	T_e (K)	F _0.90	F _0.97	F _1.01
ε Sgr	B9.5 III	1.85	9960	180.4	143.7	126.8
λ Sgr	K1 + IIIb	2.82	4770	199.4	176.4	164.0
δ Sgr	K3 IIIa	2.67	4192	304.4	277.7	262.2
τ Sgr	K1 + IIIb	3.31	4459	146.5	131.6	123.3
σ Sgr	B2.5 V	2.07	20370	100.4	76.8	66.4
ζ Sgr	A2III + A4 IV	2.59	8799	102.4	82.5	73.2

m_v is visual magnitude; T_e is effective temperature in K; F_0.90, F _0.97 and F_1.01 are energy fluxes at 0.9, 0.97 and 1.01 μm, respectively, in units of 10⁻¹² mW/cm²/µm

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