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Table 3.

Predicted time windows for the occultation of AaAb by the BaBb disc in HD 98800.

Crossing phase Early (−1σ) Median Late (+1σ)
Solution I

Gas outer ingress 26 Aug. 2025 1 Sep. 2025 6 Sep. 2025
Dust outer ingress 26 Jun. 2026 3 Jul. 2026 11 Jul. 2026
Dust inner egress 1 Jul. 2027 11 Jul. 2027 22 Jul. 2027
Gas inner egress 26 Jan. 2028 16 Feb. 2028 5 Mar. 2028
Gas inner ingress 28 Nov. 2028 2 Dec. 2028 6 Dec. 2028
Dust inner ingress 20 Jun. 2029 30 Jun. 2029 11 Jul. 2029
Dust outer egress 20 Jun. 2030 3 Jul. 2030 18 Jul. 2030
Gas outer egress 20 Apr. 2031 5 May 2031 21 May 2031

Solution II

Gas outer ingress 4 Sep. 2025 10 Sep. 2025 15 Sep. 2025
Dust outer ingress 9 Jul. 2026 16 Jul. 2026 22 Jul. 2026
Dust inner egress 16 Jul. 2027 25 Jul. 2027 4 Aug. 2027
Gas inner egress 10 Feb. 2028 26 Feb. 2028 12 Mar. 2028
Gas inner ingress 26 Dec. 2028 30 Dec. 2028 3 Jan. 2029
Dust inner ingress 21 Jul. 2029 30 Jul. 2029 8 Aug. 2029
Dust outer egress 25 Jul. 2030 7 Aug. 2030 19 Aug. 2030
Gas outer egress 28 May 2031 12 Jun. 2031 26 Jun. 2031

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