Young open cluster IC 4996 and its vicinity: multicolor photometry and Gaia DR2 astrometry

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Table 3.

Stars classified from the Asiago spectra.

No.	V	Sp	Sp	Sp
	mag	Asiago	photom.	other
AK1	10.025	B9 V	a0 V	B9 V
AK5	9.947	A2 IV	a2 IV-V	B9.5 V
46	10.887	A5 IV	a5 V	–
163	10.185	B1 IV	b1	OBe, B2 II:
174*	11.310	B3 III	b3 IV-V:	OB
553	12.015	B1 IVe	b3:	B3
AK36*	9.268	B1 III	b1 IV	B0.5 V:
573*	9.765	B1 III	b1 III	B1 III, B1 IV
AK37	10.005	B1 IV	b2 IV	B0.5 V
601	10.498	B1 IV	b1 IV	B3
HD 193007*	7.974	B0 II	–	B0.5 II, B0 III
BD+37 3862	8.982	B1 IIIe	–	B0 V, B0 IVp
661*	11.800	B3 III	b3 IV:	–
668	11.341	B3 III	b2 IV	–
735	9.488	B1 Ib	b1 III	OB
AK46	7.776	A9 III	a9 IV	A9 III
AK47	8.756	A3 IV	a3 IV	A3
910	10.863	B8 III	b8 IV	B5
1140*	11.388	B7 II	b8	B5
1266	12.086	A0 III	a1 IV	–

Notes. The first column gives the star number from Tables 1 or 2. Asterisks at the numbers designate binary stars. The stars are listed in the order of right ascension. For comparison, we list photometric spectral types and spectral types collected at the SIMBAD database.

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