graticule2.vl

{
    "height": 300,
    "width": 300,
    "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
    "projection": {
        "type": "orthographic",
        "rotate": [
            -42,
            -30,
            0
        ]
    },
    "layer": [
        {
            "mark": {
                "fill": "aliceblue",
                "type": "geoshape"
            },
            "data": {
                "sphere": true
            }
        },
        {
            "mark": {
                "strokeWidth": 0.3,
                "type": "geoshape",
                "filled": false
            },
            "data": {
                "graticule": {
                    "precision": 2,
                    "extent": [
                        [
                            0,
                            0
                        ],
                        [
                            90,
                            90
                        ]
                    ],
                    "step": [
                        2,
                        2
                    ]
                }
            }
        }
    ]
}