primeval on 27-Dec-2019 07:56:45 GMT about 2MASS J04523862-3609585
This object was found to be an esdM1 subdwarf. It has a wide esdL0 subdwarf companion, Gaia DR2 4818823808553134592. This system is the first wide M + L extreme subdwarf binary.
More detailed parameters of this system are available in Table 1 of the discovery paper. Reference:
2019MNRAS.489.1423Z
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View annotation on 2MASS J04523862-3609585 object